Hmm, I like your idea of improving AI types or adjusting their category, but I can't say I agree with all of them. And yeah, if it's going to be changed, it should be changed based on 7/7 experiences, not 9/9 or 10/10.
I'll list the AI types I have something to say about.
All the Easy ones seem right where they belong. Gravity Drill just makes everything slow, but play it right and those drills can help you enormously with defense. So I think it's right.
I'm not too sure about the Train Master as I have never played against it. If they really are currently easy (and I can't remember them being in the easy list), then they might have to be moderate now at least. Trains are much more dangerous now than they used to be.
Camouflager is not not that hard but annoying, which is why it's on moderate. You don't know where what is until it shoots at you, which can be quite a pain.
Counter Spy is right where it is. Scouting is essential in this game and not being able to properly scout worlds and keep them scouted is a major annoyance and can mess up your games pretty badly. It's not about whether counter spies are easy to deal with, it's about being able to properly scout or not.
Mad Bomber is a type I've never really played against so can't give my opinion on that one. I have started a 9/9 Mad Bomber and Raid Engine game though so we'll see where that goes. I'm expecting the Raid Engine will be much harder to deal with.
Neinzul Youngster sends more ships, but they are all ships that die faster so I dunno. I believe most of them have tractor immunity but like mentioned before, grav turrets are their hard counter.
One-way Doormaster is right where it is. Yeah BHM's cost AIP on death, but you seem to forget that you don't have to kill them. Just capture the planet and the BHM is yours. If you don't want to capture one of it worlds and just neuter it, send just enough amount of force in so scrapping your fleet leftovers won't cost you to much. And even if you do decide to kill them all, it doesn't matter much in a 7/7 game, which is the balance point after all.
Speed Racer is one I'm not sure about. Haven't fought it enough to judge whether it should be hard or moderate.
Spireling is good where it is now. Spireling give most players more trouble than most other moderates. Tractor platforms, blade spawners, SSB's... He might even have to go to hard.
Haven't played against Starfleet commander.
The rest of the moderates seem good.
Alarmist. Hmm... I agree that a single Alarm is not much of a threat, but keep in mind that when playing against this AI type, it's easy (and often unavoidable) to trigger multiple Alarms at once. This could get quite nasty.
I completely agree with you on the Attritioner. Personally I would even put it on easy right now. It does little to annoy. The Spireling I played against in that same 7/7 game gave me much more trouble. I think the Attritioner needs a serious buff. With your idea of having it protected by command stations, do you mean give the Attritioner units external invincibility until command is destroyed? That would indeed make stuff like neutering much harder for that AI type and I would like that.
Golemite is exactly where he belongs. The golems are either easy or hard to deal with, depending on the situation. Imagine fighting against a Black Widow golem while the AI has unlocked Tractor Platforms. Yeah that's gonna get nasty no matter what you try. Or pissing off an Artillery golem which then decides to take a few shots at your home command. Most golems actually have to be avoided early game, until you got some superweapons yourself. Or at least until you got mk III bombers.
Never played a full game against Radar Jammer so I can't say for sure, but I do think they should be moderate too yeah. Attacking planets might be somewhat harder but capture all those Radar Jammers and it'll make defense significantly easier.
Spire Hammer also seemed a bit weak, last time I played against it. But I think they were meant to be hard, something just didn't go right.
Scorched Earth is right where it is. It hinders you from making easy progress and you have to pick your targets carefully, but the AI type itself isn't really dangerous. 7/7 games with one Scorched Earth are definitely winnable, they just require a different tactic. No I don't see them as Red AI type.
Special Forces Captain... I have never played against it but I'm actually thinking it should be a Red AI type now. SF from a regular 7/7 game can already be deadly. The Captain just makes it worse. I would even go as far as to change it's name to Special Forces General. It's a high ranked officer you're dealing with here.
I agree with you on Crafty Spire. It's tough, but it doesn't deserve a Red name. Heroic does something similair and is much, much harder. AI types like Raid Engine and The Core laugh at Crafty Spire.
Well that's it. The other AI types either seem good to me or I have too little knowledge about them to judge where they should belong.