Healing is only part of it. The class was heavily tied to 4E mechanics and concepts such as the leader role and the AEDU power structure. Apparently there were also isses with the class in organized play (using other PCs as pawns with powers).
First, "leader" has been around since 1e as the cleric.
Second, the archetype existed in 3.5 as the Martial. You "motivated" and boost your "troops" and grant move actions. The only thing 4e did was include inspirational healing.
And i have yet to see anyone say that 5e warlords should have AEDU.
To make an accurate warlord faithful to the 4E version I suppose you would have to reintroduce things that people hated in 4E. 4E was not well received to put it mildly.
4e was a different game, yes. But hardly a bad game.
Calling it "D&D Tactics" would not be out of line.
The lazylord build also acted as a force magnifier. You get a class that is OK at healing but can drastically boost a parties damage per round. It looks innocent enough but then you realize the warlord is boosting whatever needs it the most.
The marshal could also do this. Boosting any stat as needed, but it was still very under powered.
4e lazylords where also slightly underpowered. The best warlord powers required the warlord to hit something himself, and they where a bit overpowered. Though it's easy enough to change +10 to hit into advantage.
Its also a reason why people probably find the Ranger underwhelming. In 4E it was the best striker by DPR, in 5E the hunter is decent enough but the beastmaster can't do that.
Your contradicting yourself here.
If people didn't like 4e, they wouldn't compare the ranger to 4e.
But yes, some people expect the ranger to be a spell-less striker. The ranger has changed a lot though the editions, and much of it's original identity (survival skills) is now a background. Personally i think pets is the most unique way to go with them.
The class also encourages a large amount of min/maxing. In the right party it is awesome in the wrong party not so much. The 4E Warlord and Ranger were very powerful though in that edition. The equivalent would be 3.5 players demanding the concentration mechanic should go and spells scale for free (damage dealing spells scaling for free did not break 3.5 though the main culprits were other spells).
No one is arguing for an overpowered warlord. Or an underpowered martial.
And every class encouraged min/max. Warlords where a lot more influential on the party level then on the individual level, but there was no more pressure then normal.
The warlord was only in one edition of D&D, most of the other classes were in several editions and even newer classes like Sorcerer and Warlock have been in 3 editions.
2 editions. Again, the martial. Though i'm not sure what that has to do with anything.
Unfortunately for the warlord 4E was very different and to make a decent warlord you would need to bring back things people hated about that edition.
Like what?
You don't need a grid. You don't need 5 minute short rests. You don't need the bonus treadmill. You don't need inflated hit points. You don't need AEDU or uniform class structure.
Basically every warlord ability is already present in 5e. Commander's strike, inspiring leader, bonus action help, bardic inspiration, cutting words, rally, defensive style, maneuvering attack, distracting attack, ect... They are just scattered throughout other classes, rather then being the focus of a class.
The only one that's missing is inspirational healing (though inspirational THP exists).
It's fine to not like the warlord, but there's no reason to lie so much about it.
I expected better from you zard.