While i would agree that making movies by people other than hollywood is neat, movies cost money. Its not a sure investment, lots can go wrong. Short budget can be a hit, yeah, but we dont really hear that much about the bad ones(unless they are impossibly bad, like the Room). Also i think this is not a move that will sustain Gina Caranos film carrier in the long run.
Having said that, seriously, the firing was a really bad move. Apparently the suits cant forsee how popular the new star wars mandalorian really is. This is ''adjusting'' a goose that will not lay golden eggs, its a goose that can potentially save the farm.