It really feels like you basing decisions on snowcrows golem benchamarks instead of actual player data. There are so few mirage players in PVE, let alone ones that hit those bench high numbers. Mechanly harder builds like mirage and certain elementalist builds should do more damage as a reward, plain simple, otherwise none will even try to put effort into learning it at all.
Plus you are nerfing condi mech without even adressing it by "fixing" the blowtorch bug.