For me exploits are such things, that defy logic and exploit the way how AI works.
Preparing an ambush in which you want to lure the enemies: tactic Sneaking in the camp and plastering everything with explosive barrels: exploit
Killing a minion out of sight of all others: tactic Keeping the Boss in talk, while you slaughter his minions in his sight: exploit
Honestly, I don't care that much, how people exploit to win, I'm just pretty disappointet once more, like many squels falling short to their predecessor.
50% more on every stat is just cheap for a hard mord and also questionable resonable, even more because of how armor system works.