The main problem is that they have not learned anything from Steam or other competitors in the same field. They have provided a service that is worse than Origin at launch for a while and will end up in the same curation trap that Steam ended up.
There is also the point that in the PC world, where there is no hard reset of your "content" with a generation, you will always end up with a store that has too much content and will need some discoverability tools for older games: influencer push will only help during the launch window and afterwards they will be less likely to try the game again.
(sorry for disorganizing your text, I thought this way it joined better)
I read the entire post, and I understand what you mean, thanks.
Regarding the quoted though, I made a post a long while back about what I wished that Steam would do regarding store curation, and I know it's extremely complicated, but my basic idea was that I'd have essentially two stores, "My store" and the "Steam Store". I could add publishers/developers to my store, which would make all the games by them visible on my store, and would remove them from the Steam store query. So as I built up and curated my store, by adding devs/pubs of games I like, my store would instantly show me all the content from developers I'm interested in, giving more visibility (visual space and coverage) to those developers, and the Steam store side would, over time, feature less games from pubs/devs I liked.. but give more exposure to ones that I might not have heard of since there would naturally be less clutter on both sides.
Essentially it would be like 2 tabs, one side where I pretty much knew that everything is coming from developers I enjoy, while the other side are the ones that I don't care about, which still would make it easier to parse through and find new content that I could potentially add to "my store".
Anyway, my whole thing really does come from a place of wanting to see developers of games I like succeed and continue to announce great games for PC. It's kind of discouraging when I see games release on Steam that fail to reach an audience that I think should be there. I know the competition is hard, and there's lots of reasons why Steam releases don't always work well for some developers.. but I think there's room to try different things and see what helps, and what doesn't. That also includes Epic games and what they are attempting.