"Policy dictates"... Literally every node pool "dictates policy" (until Stratum V2)
You're trying to form this false narrative that there was a "standard" or "implicit contract" to not change this specific value. That is literally not a thing.
There were debates around what the DEFAULT should be, never around the whether or not people should have the ability to stray from that default. There is a reason these are configurable...
You must be mad about one of these:
A) That an alternative implementation dared to have different default values
B) That a node pool would dare to change this specific setting
And I don't understand the uproar for either case.