Some things you mentioned here (OTP/QR code, granular control and admin level) are definitely on the roadmap, we just haven’t gotten to it yet. 
For “Pseudonyms for Anchors”, I think that’s a great idea! How would that work exactly? Are you thinking of e.g. generating a pair of words based on the anchor number for instance? Having user-specified pseudonyms will be a bit tricky to implement.
Finally regarding browser compatibility, can you clarify what the issue is?
I think this isn’t such a bad thing, at least for now. The IC ecosystem is very young, and it’s really good to have all those different players! One thing that would be absolutely great is to have say a base authentication mechanism like II, but with pluggable 3rd party features; but maybe I’m dreaming a little…