New extremely effective reaper opening

[Alvendor]

So, I got caught with this rush a while back. I wasn't paying attention and missed what Ryzuma did the first round. Not sure what I would have done if I'd noticed it...
outwitters://viewgame?id=ag5vdXR3aXR0ZXJzZ2FtZXIRCxIIR2FtZVJvb20Y477WAww

Thought it would be fun to try out and this happened:
outwitters://viewgame?id=ag5vdXR3aXR0ZXJzZ2FtZXIRCxIIR2FtZVJvb20YiNLaAww

Then I vaguely remembered this thread. Is boosting the sniper and killing the heavy considered the best response to this?