They've released a public roadmap, obviously as more people are on the platform (due to the high profile launches), they're going to be putting increasing effort into improving the platform. Steam has had a long time to improve, and it's still plenty kludgey in certain areas.

I feel people often underestimate the difficulty of going against a monopoly that's been king for over a decade. Multiple avenues are the only way to succeed. I think Epic Store would be DOA without exclusives, regardless of the quality of their launcher.