The SOLUTION to re-farming the same M+ gear every new patch: increase upgrade limits

Where on earth did they say that so definitely? Their original announcement didn’t even include “750” at all. It simply stated that:

In the most specific post I can find on it, they simply asserted that:

It’s rather certain the cap will be lower, but I don’t think they’ve ever asserted that it’ll specifically be 750 the first week of the next season.