[iM yang]

This isn't new and loses to proper scouting and reactions. An early stargate kills all your spines and your proxy hatch because a stargate can reinforce quick enough to kill any building queens.

If you do this against FFE and you don't kill him with a runby after the wall is down, he will have enough economy from 2 base to kill you before you get any meaningful tech out.
If you do this against 1 base Protoss I doubt very much that you can hold off the Void ray/gateway allin that is sure to come.

Not to say this is a bad strategy. Though it only works once in a while against Protoss who don't really know what to look for. It can easily be disguised as a 1 base gas all-in(roach/bane) and can punish players who read the game state wrongly.