Thanks for the feedback!
Which features, specifically, and how would you envision them being used in a web environment. For example, Analytics is pretty self explanatory, but what would you do with a tool like Remote Config--designed to help developers deal with the difficulties of deploying app versions and to help tweak config-level options on a per-device basis--in a web environment? It'll help to understand the use cases that your can't resolve easily in web apps, using things like the Realtime Database, in order to see where this fits on the roadmap.