What’s true is that although a molded case circuit breaker (MCCB) built to NEMA AB-1 standards and listed under UL489 must be capable of (I think) 2000 mechanical operations, it is only REQUIRED to trip twice at full rated fault capacity. In other words it will trip, can be reset, then must trip again, but it is not REQUIRED to reset after the second time. That doesn’t mean it won’t, it just is not required in the testing / listing of a breaker and if it does reset, you’re on your own because it is not technically required to trip again after that. The reality is that MOST breakers are not really operating at their full interrupt capacity, it’s just that they must be tested at that in order for the rating to mean something. But regardless, nobody can give you a number of trips at less than rated capacity, so the only safe bet is to just assume the worst.
This is not new, it’s been this way from the beginning and it’s not specific to any brand, it’s the same for everyone.
POWER breakers are the same, but are DESIGNED to be rebuilt. MCCBs are not, they are throw-away.