I'm A Banana
Potassium-Rich
Honest question about the Warlord from a total n00b - wanted to play one in 4th but never got to, and mostly speaking from a 3rd Ed. background:
Haters don't like "shouting away wounds", and supporters counter with "hit points are not meat". Both arguments seem fair.
Core game already has Battlemaster maneuvers, which were supposed to replicate this playstyle (though there's argument whether this does an adequate job). But there's also the Inspirational Leader feat which no one really seems to have a problem with, though it's effectively "shouting hit points onto people".
Wouldn't a potential Warlord fix be a second feat with a prerequisite (not common in 5th, but precedent with the Deep Gnome magic)? The upgraded feat would allow people to non-magically inspire people mid-combat with temporary hit points to reflect morale and willingness to fight, but not "yell wounds closed" in a way that breaks suspension of disbelief.
The same could be done for advanced Battlemaster maneuvers, given via feat with a prerequisite of a certain size superiority dice. Fighters get an extra feat or two anyway, so regular Fighters could focus on stats while a Warlord would have those two missing pieces instead.
I still think we have the essential problem that a big part of the pro-warlord crowd wants actual hit points to reflect morale and willingness to fight, and a warlord that cannot restore hit points via non-magical inspiration is unacceptable to that part of the crowd.
Which brings us back to the fundamental choice.
You can have an HP model that allows for both wounds and inspiration and have a nonmagical warlord that can get allies up from unconscious, keep them going after they would've usually dropped, and inspire them to fight on
OR
you can have an inspirational HP model only and have a nonmagical warlord that can heal hit points by inspiring.