Stat inflation its self isn't bad as long as its equal for all stat builds. The only exception to this is the Templar, because BM increases Melee exponentially as Int goes up. If its exponential, it will never be balanced across the entire spectrum. Just look at exp gain. At 1-10 it's too fast. 11-20 is ok. 21-30 is ok, but 35-39 seems just right. 40-50 is slow, 51-60 is very slow, 61-70 is even slower. 71-99 is a sanity-sapping experience. Everything above this is hazardous to your health, especially your EYES!! You might be thinking... just us a HK... well that's not actually playing the game. If it gets bad enough to where the OFFICIAL DEVELOPERS create a BOT, then it's blatantly obvious that the system is flawed. The point is, in the long run, increasing exponentially does NOT and won't ever turn out well, for EXP rates AND BM.
As long as BM gets stronger exponentially, it will be flawed.