This attempt to replace established heroes with temporary and inferior versions of their supporting casts was just a terrible idea imo. It dilutes the brand, comes off forced, and puts off some of their more dedicated fanbase.
The worst part is the accusations levied at people voicing concerns or being unhappy. Jane could have a dozen of titles in her name and I wouldn't care, but have her steal Thor's name, identity and hammer and of course some people are going to get their feathers ruffled.
And tbh, anyone who leaves because characters who have been around for about 50 years are reclaiming their own identities don't really seem that dedicated as fans. If there is enough of a market, all your favorites can come back in different titles under their own unique and new identities.