Shardstone
Hero
The Kibbles and Laserllama Warlord classes are fantastic and well-balanced. They are also on two different spectrums; the Kibbles Warlord is a lot more involved and caster-level of complexity, while the Laserllama feels more like a 5E martial warlord but still fun and doing more then just hitting things.Disagree.
You can't port 4e mechanics over directly, but you can port the flavor of the mechanics.
Instead of granting movement, you can have "enemies adjacent to you can't take opportunity attacks against other creatures". Which works well for theater of the mind.
And nothing says they need to give out small bonuses. Mastermind rogues can give advantage as a bonus action, and no one thinks that's over powered.
Also, bardic inspiration, bless, crusaders mantle all give out small bonuses.
This is the actual issue.
They attempted the warlord with both the Battlemaster and the Banneret. But you still mostly just hitting things.
However, both Warlords expand the game a good bit with their new mechanics. 5E is conservative; it doesn't like expanding the game. That's why we never see new classes IMO because a class is basically a subsystem that gets added to the game that one (sometimes more) players can enjoy.