ph0rk
Friendship is Magic, and Magic is Heresy.
I don't think this is a bad thing and I still don't quite understand the necessity of the subsection of players that want complex martials to be prioritized,
They don't even exist.
I'm also not quite sure how Warlocks are being pegged as the "Simple Caster." I mean, they're more complex in all ways than the most complex noncaster. So, they can maybe be argued to be the "simplest" caster, but I don't think that makes them a "simple caster." If you understand me.
Warlocks sort of are. Sorcerers used to be (in 3e - no prepared slots. Spontaneous casting was simplicity then), but a vocal group of players got attached to the class and get very upset that they were not better wizards, so we have what we have now. The warlock has been totally garbled from previous iterations, so now it sort of does what the sorcerer could do (simple casting with a reliable magic fallback - eldritch blast) but the invocations have ballooned so now they are probably the most configurable base class in the game.
A simple blast lock can be a small decision tree class in combat, if one wishes, but it takes some planning to get there; it is not as easy as rolling up a champion or barbarian.
But, back to fighters and barbarians - how much new stuff do they tend to get from 12-17? Compare with new spell levels, invocations, and, well, new spell levels.