Counterpoint: TP Foe is currently a next-to-useless power that really only gets used to drone people in RV. Wormhole has its uses, mostly because you can pick exactly where you want the target to end up and it causes a 4-second stun immediately afterward. Fold Space has limitations that will make it not particularly useful in a PvP environment. At the very least, removing the OAS/intang period would make Masterminds something you would need to be actually concerned about again.
Even with the OAS/intang period gone, there are very few use cases for enemy TP powers in arena matches and if I know I'm going to be fighting someone who is going to use a TP power I'll just bring along some oranges and everything will be fine. Yeah, you can do some cheese with TP powers in zone, but even pre-I13 when the OAS/intang period didn't exist it was the kind of thing that would happen to you once and then you'd figure it out and the other person's strategy would be done and gone.