Yeah I can't buy that since the whole purpose of IR is to get the call right. If you are only going to do it for half the scenario, it won't work. Umpires get almost every call right. Homeruns calls are just too far away for umpires to be right every time especially with how parks are built now. Last week when umpires blew four homerun calls, three of them were called correctly and then overturned. That should never happen! With IR, it will never happen again.