Anyway, due to Shrugging Khan's boasting of having too easy a time with those, the broken-golems-hard exos are about 15% stronger now, on the average. Some other tricky logic thrown in for good measure
Come on, 15%? You insult me
Although I've yet to try the new 9.0. Maybe on that they'll finally put up a fight!
I disagree, here is why:
Exogroups are special because functionally they are like spawned far away, not on planet like waves. As a result, the AI logic of "no suicide attacks" clicks in for them. If you put a fort or other substantial firepower force defending your border the exogroups camp outside your worlds. Eventually, they'll join in on another wave, and in the mean time they'll defend that world or other worlds (leaving a mess of MK V units roaming around). If they don't jump in a wave, they'll wait till another exo-wave, then two groups will ram through together. Unless your world is a fortress world, then they'll just wait for MORE help...
On lower AIP and difficulties, it doesn't really matter. But if you have two sources of exo-waves on higher difficulties at the 300+ range, the AI has the potential to spawn units faster then you can normally kill them. That is terrifying. This, combined with their hefty econ drain through attrition, can make a tough game. And it should be that way, because you still get to use those awesome things.
Attrition can be avoided easily by distracting the enemy with a few fleet ships, then moving the golem in at the right time and withdrawing it before they can turn to damage it heavily.
Until now, I've usually played diff 8.0, and the strike forces were flies on my windshield. All their fleet ships were busy chewing at my stationary defences, and the big hitters were unable to crack the shields in time before my fleet moved in and took them out in seconds - they aren't that tough, and lack versatility to defend themselves.
If the strike force stays at an AI planet until further notice, then that's worse for them, since I could easily take my time and move in to take them out. Their presence, after all, is announced.