This, and there are half a dozen social skills. And people keep trying to focus on no-proficiency 10 Cha characters trying to use persuasion when…that’s just a bad player choice, not a system issue. The 14 Cha Proficient character is gonna contribute just fine.
This
Wait are you saying extra proficiencies don’t count because backgrounds give proficiencies?
Battlemasters do not get extra
skill proficiencies. Minigiant spoke in error. They meant an additional artisan tool proficiency. You can probably guess what I think of this so-called "utility" benefit.
As for the
actual contribution BM makes, namely the Commanding Presence and Tactical Assessment maneuvers, subclass is separate from class. If subclasses
elect to offer such choices, that's cool (though I wish it were better*). They can do so or not do so; they aren't meant to provide the core functionality of a character. The class itself, however,
needs to give at least a thin veneer of distinctive support to all pillars of the game. Otherwise, the pillars
aren't pillars, or the class is poorly designed for the explicit, stated intent of the game.
I have, twice now, given an example of what I consider such a thin veneer. A properly-playtested idea in the general shape of my Gritty Determination proposal, and decoupling Tactical Mind from Second Wind. If you coupled those changes with small improvements to the Battle Master's skill maneuvers (and, ideally, adding
more such maneuvers, e.g. relating to Survival, Perception, and (say) Medicine--call it "Survival Training" or something), then I could accept it as being adequate.
*In brief: Having tools to do cool social things is great. It sucks balls that you can only do so by giving up the stuff you
need in order to keep up with other classes in terms of combat contribution. If Commanding Presence and Tactical Assessment had a "this die is not consumed if the roll still fails" clause, I'd consider them in the ragged-edge-of-acceptable range.
This is part of why it's so frustrating to discuss these things. You ask for an inch and people act like you're demanding a mile. They catastrophize. They turn any criticism at all into the most heinous thing ever, and anyone speaking that criticism is instantly and irrevocably impossible to please, someone who will take and take and take and take until Kingdom come. The changes
do not need to be dramatic! And they can be quite simple to use in actual play!
Or Rogue. Adding rogue to any Dex fighter build is very good.
Though of course one must then wonder why you don't just play Rogue. Which, believe it or not, is actually pretty close to acceptable for me! There are a few tweaks I'd still want to make, but overall, Rogue isn't bad in 5e. It's not what I would consider
good either, but it's not
bad. (Its subclasses, on the other hand....)