You're wrong. Empty page with no scripts still costs 100MB of ram.
19 karma · joined September 20, 2017
It may be useful if you know and like JS already or your have a team of web developers and you need them to build mobile app for you or your client. They should be able to do it without much to learn and your will have an app that can be potentially run on Android and iOS.
That's the best way to see how many services still relies on http at least partially.
... unfortunately
I hope it will get better and soon we all will be able to do that