They could've come out and said "Hey, due to increased demands, we're reducing the limit", but instead they chose to do a rug-pull, in the guise of "off-hour" limit increase, while absolutely butchering the limit in both peak, and non-peak hours.

Additionally, they chose to gaslight the users, wait until people make a lot of noise, "investigate", and reach the conclusion that the same users that have been using their tools, with the same exact models and the same exact workflows for months, suddenly can't approximate / estimate their own usage compared to previous months.

Such a bad business etiquette, but nothing unexpected.