I was just about to post this very point. I can’t find any direct way from this page to get to my collections, votes, edits, etc., all the pages I use routinely. I clicked on “MusicBrainz Database” in the “Explore MusicBrainz” section which got me to a documentation page about the database, but at least, from there, I was in a familiar UI.
I think I’m going to be in the same camp as IvanDobsky. I suppose there’s nothing wrong with having a flashy front page to attract new users, and I may check this page occasionally out of curiosity, but I’ll likely be bookmarking some page that I actually use on a regular basis to get where I need to be.