Cuz the whole world went into lockdown and they probably wanted to give people something to do. Why complain about more 4x events? also, it went from 3x all on one event, to 3.5 harvesting, taming and raising on the next, to 4x harvesting (yesterday). and now 4x everything during the eggcelent adventure. if anything, it's still higher than all the other events.
Maybe not look a gift horse in the mouth and punch it?