I play Monks. Ki doesn't affect basic attacks, in fact Ki is generated by basic attacks. Stamina on monks would limit their Ki generation, which you imply is already problematic (Which I agree with to a degree).
Oh, JUST add a whole new class of melee abilities? Yes, I can see a whole new line of melee CC, area knockdowns, area stuns. That about covers what is logical for melee, no?
Stamina bars are a boost to Melee? Ummmm, no. Adding more cc? Yeah, that I can see as a boost.
Oh the joy. Melee mobs getting access to area stuns and knockdowns. Casters aren't the only ones that can CC the party now. Well, people DO say they want more challenge.
Gear and feats and enhancements for Stamina regen? OK, and what defensive/dps gear and feats and enhancements are you gonna NOT take so that you can stay in the fight longer? And if you can show me feats and enhancements that allow SP to regen I'll be impressed (I know about the what, four pieces of gear that allow some SMALL amounts of SP to be regenned)
Vorp crits replenish stamina? So why wouldn't a critical spellcast replenish SP (I can see THAT one coming a mile away, and stamina isn't even a thing.)