This is hardly lazy when compared to 80% of the German and Soviet factions. These two factions are pretty content-full if you ask me. Both commanders combined only share 2 abilities combined (though both are in Mobile Assault, the M2 Flamethrower upgrade and the Vehicle Crew Repairs) You are far too picky when it comes to these things; it appears that all you want with new commanders is completely new content and assets. Which isn't always possible from both an economic and developmental point of view (it's going to cost a lot of money to do that, and it's going to take time - and if you're able to do both, you'll run out of ideas content real quick, as I know from personal experience). Mechanics like Counter-Battery and Advanced Cover Tactics are perfectly fine.
Also, your ranting about the M2 Flamethrower is like complaining about a standard artillery barrage being included in multiple doctrines across different factions. Which is to say, it's not a good argument. However, I will agree that having the Life Bouy flamethrower instead of the M2 would be nice. And yea, I totally agree that our Advanced Emplacement commander needs to take the tape off his fake beard and grow a real one.
+1