You do indeed have IPP which works by reflexively burning motes or willpower, both of which are finite resources. If someone could say sit in a ritual chamber two hundred miles away and fling curses at you a a dozen times in quick succession while their friends are taking you on in person, that is a problem from a tactical PoV.
But it isn't an instant loss, which was the reaction that people indicated.
If they try that, we can still do things to counter, and they first have to realize we can even run empty, which has never been the case till now.
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Also, two hundred miles is not that far given how fast we can actually travel, we have demonstrated that more than once.
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