You assume a lot there. Why in the world would the AR put the flag up because he wants the VAR to check?!? He wouldn’t. The VAR checks every goal. And the AR is evaluated on getting the call right. If the AR puts up the flag, he’s concluded it’s OS. That’s the instruction—nothing changed. The only difference is that the AR is to delay the flag for a goal scoring opportunity.
Btw, OSP is objective, so it isn’t governed by C&O—if the VAR can determine the OSP part of an OS decision was wrong, the call is reversed. MLS doesn’t have line drawing technology, so the scope of can’t tell for sure is going to be higher. I, for one, think that’s a good thing, as it means we don’t get toenail callbacks from the VAR booth.