Always goods to know what to look out for.
should note : sometimes a swapped component may not be lesser than the spec, a number of times it can be equal, but it's never better.
the other thing to be mindful of is mars is a massive mfgr, they source components from several suppliers. with supply line constraints and budget pressures, they will turn to other solutions to fulfill orders like many other mfgrs would.
it's worth mentioning that the best thing mars does is provide competition at a price point. they aren't trying to be the best at all or anything, just the largest. their business model is to dominate the market at any cost under any means.