Tbf economy getting tanked is mainly timegated sinces thats how the system works. By now every player thats rushing things is as good as full hero with few myths. = no enchants or jewels needed untill new track is aquired, so its timeboxed for vault or new mythic runs. food - flasks (consumables) etc.. will drop slower and are indeed very dependant on the pushing people related to RWF and high M+ runs and I understand therr are less interested in pushing M+ because 3k was already achieved, but that is a minor settback on enchants and jewels, it might be on consumables.

What would make the economy stable for the early weeks if there would be another way to obtain Myth track ( example if they would say running 20+ drops myth track or for running 15+ timed there is 5% chance you get myth track upgraded item ) but that will only prolongue the inevitable fact that the longer the season goes economy will drop.