Crit activated stuff also blatantly favors crit-fishing weapons. Another ugh.
The fighter gets tons of feats. Unfortunately, unlike a caster, he Cannot Change His Feats Daily.
So, introducing more feat chains is just adding stuff he can't take, because there are hundreds of feats, and he gets 11.
If you took that feat chain down and made it ONE FEAT that scaled...then you have a feat that's the equal of a Rage Power. You know, a class feature.
The rationale of making a feat chain because fighters have feats is like making sucky spells for spellcasters because they have tons of spells. The casters aren't going to take the sucky spells, and fighters aren't going to take sucky feats that eat up their precious class features, ESPECIALLY for some niche function.