Calling it bloat does not change the fact that enemies not being easilly CCed makes the game more tactical.
I have definately 100% played games where that was the case. Where simply buffing an enemy changed the way the entire game was played.
For example Freedom Force Vs. The Third Reich... The Gorillas are defeated in one hit with one of your heroes stronger attacks, making it a great opener. Yet they not only survive but their attacks are devastating. So suddenly the winning opening gambit means you have to carefully maneuver around.
The ISSUE in DoS2s case is the optimal strategies overwhelmingly still work. A lot of people's trouble with the game on Tactition usually translates to them relying on defense to survive a round.
I just wanted to agree with this as well, simply boosting stats can change tactics for sure.
I want to suggest another possible way of changing AI behavior without boosted stats other than one... Mod in +1 to +4 AP recovery for AI. That will give the AI more AP for more attacks/options for each round, definitely will be harder, change tactics on your end and not have meat mountains each fight. So the same idea I shared with reducing boosts, you can add in AP there as well. Also looking at how to make it a mod that you can just download it from say the Workshop, I hear that is possible now with stats. Hiver that maybe something interesting to test.