Relax, i just did the calcs because i was curious.
If your opponent is +1 behind a sub, it has already gone too far. And if they are a Sub set that doesn't have the sub up? Who cares, Pursuit breaks them, and you spec'ed to tank a hit, and having them set to +2 is equivalent to that hit too.
It is not a good counter per se, but it is setting up an undeniably favorable position against an already set up sweeper.
As for Obstagoon's stats, i thought Durant stats was not so unbelievable as to just drop the calcs.