Whirlwind does not need Dust Devils to be competitive. Having a large AOE is not necessary for WW to be a push build.
It could keep its basic area damage (just from WW itself) and be good for solo if they upped the damage itself by a ton.
DH Rapid Fire has a small AOE and does fine on pushes (many many 130+ clears, up to 134-136 in NS, aka way stronger than WW). Same with plenty of other builds. The difference is those builds, unlike Ww, don’t lock up the server and have real damage.
Whirlwind’s problem is server performance and that issue makes the devs afraid to buff it. So honestly just deal with the root of the problem.
If it lets them fix the set lag in density I’m all for killing Dust Devils or making it do something else.