So what you see saying is you literally have to defend one of 2 spots and the ability will do nothing... But you don't want to so the ability punishes that....
The smallest amount of effort and toy won't lose 4 armies worth of units plain and simple. It's as counterable as can be. 250mp across 4 players isn't too much to ask...
No, what I'm saying is that setting off the ability in 4vs4 AT is very easy and not some genius 4D chess move like you seem to be arguing. It's literally 8 clicks between 4 players (as in 2 clicks per player) to set it off with the right commander combination, even with the caches on cutoffs and assuming the enemy perfectly figures out your strat and responds accordingly, the best you can do is cancel it early by capping the point back. Assuming of course that the enemy team knows whats going on in the first place, because you can try being extra sneaky and never show them storms etc. so they can only guess if they have CTP to worry about or not.
I'm not even arguing for the ability to be nerfed, I'm just giving instructions on how to cheese your enemy with it and how easy it is XD.