Some stupid blastwing rushes have been performed:
B380339 2 on TinySkirmishRedux1.1 succes vs comrush
B380341 2 on Desert_Plateaus succes
B380346 2 on Zed 1.7 loss: forgot repeat queue, was too timid to properly follow up with comdrop
B380347 2 on Hide_and_Seek_v03 succes
B380354 2 on SiberianDivide 1.0 metagamed
Sprung, did not go for blastwings, he went for mass AA and lag
B380405 2 on Obsidian_1.3 blastwing rush beats scorcher rush barely
It is easy to pull of, if you don't forget repeat queue, send all bw's to enemy com and prevent a defender to go up.
The main reasons it is so strong are: 1) lots of damage can be dealt really early
2) only good counter is defender or AA (they can get in and explode before they get killed)
possible nerfs could be: damage, speed, weight/cost and hp
The question is: what should they still be able to do?
their damage is already quite low: they dont make cost vs mexes (I think, maybe they do if you holdfire them and land them next to a mex)
I think they should be able to: make cost vs raiders and skirmishers as mines or when flying into advancing packs, but retreating raiders should be able to skirm them.
I think a speed or health nerf would be best, this would allow more units to hit and kill them, speed nerf would also make a bw rush less viable on middle sized maps, and give opponents time to see them on radar + make defenders.