I think the balanced stat distributions are a good thing. Its kind of annoying when some chars get super op stat gains, while others get mediocre stat gains.
There is still variance. Some guys have weakish base stats or less useful stat distributions. Like I find Linda pretty useless sicne Skye seems to outclass the hell out of her.
And my Linda got good stat gains due to good luck too.... Skye is just a complete and utter beast. High mobility, good str, skl, spd and good hp and defense for a ranged unit.