The demo is likely an older build already so it's hard to say what the current state even is, but it's really surprising something so rough is a public demo.
Grievances with all that aside I do think the core loop seems interesting, but this is like the worst aspects of Nioh loot spam ramped up to 100. There is waaaaaaaay too much menuing, new equipment after every single fight, etc. to be juggling. Then the class system with different equipment per set and decking out the teammates is added on top...it's just far too much and I don't really expect that aspect to change much.