Been playing BAR a lot lately and even gotten somewhat good.
Gotta say the total annihilation/suppcomm/BAR etc version of the playstyle model, where your tier 1 units are still useful into the lategame is very pleasant.
I can be at t2 max and still level an opponent that is building T3 units.The sheer number of units you can build removes some constraints you would have in games like wc3, where tier 1 will become heavily obsolete in the lategame.
The issue: like all games with an older model the playerbase is split between pros and absolute noobs, very few in the middle.
Also:
Look at the gif. It seems braindead simple, yet many games lack this basic feature. It seems simple with 5 units, but you can do it with 100 units as well and since you draw the line the units form around, you can strengthen one side and retreat the other. You can also draw an encirclement. It's fucking amazing once you have longer ranged units or if you are maintaining a frontline.
I have no idea why so few games have this. I think even suppcom doesn't.