Spirecraft Scouts need to have their attrition time increased significantly. I can scout a 60 planet galaxy with just a pair of Mk. IIs. There is no need at all to build any higher marks.
I'm not sure why you think this is a bad thing. You permanently expended a Xampite asteroid to get those scouts, instead of something else, like a Mk III Martyr or a Mk I Penetrator. You're also permanently taking Exowaves.
All for something that you can do with normal scouts, or a game lobby option? Doesn't seem like that's overpowered to me.
Except for the Hive Golem.
Even with the massive recharge time, the thing is like a nuke-without-the-supply-mauling. Slide it through the wormhole, bap Unload, retreat, watch everything die horribly.
Which, while really funny, is probably kind of overpowered...a lot...
You take an AIP hit to get a Hive Golem, minimum 20 AIP, up to 40 on Golems Medium. Then you have to repair it, which should cost about 1.3 million M+C each. Then it costs 700 M+C per second to keep it active during the 1000 (17 minutes) seconds while it charges (plus the 400-ish M+C/sec that the 200,000 energy costs require). Total costs? 1.3 million M+C to acquire, plus another million M+C for each load of Wasps. Not to mention everything you'll be spending to fight off the Exowaves that the golem brings.
That's a lot of effort for something that can be shut down completely by a bonus ship or a common Guardian type. Homeworlds with either a Wrath Lance or a Gravity Reactor (or an AI Eye) will hard-counter the Wasps as well.
Despite all that, are you sure that the Golem is overpowered?