We aren't going to get much resistance until the AI is improved. Buffing troops well beyond the existing power curve doesn't make them tough, it makes them annoying. They're still easy to beat, it just takes longer.
And on top of that, it encourages everyone who doesn't want to think about defense (and who does, it's MEANINGLESS) to continue to use the same one or 2 troops over and over again.
Fix the AI, make defenses more meaningful, and then start buffing troops.