I am someone who weighs about starting new projects when I see a supported script or tool. But nowadays, I have started thinking that days of web projects are over. Almost everything is moving to apps.
That is true to some extent. There is a good chance of failure if you do a web only project. But if you can provide apps for different platforms for your project, mainly iOS and Android, it is just like the old days.
A lot of features which were once the sole domain of apps have been absorbed by the web with more and more being added with each passing year. I think what people really like with apps is things like notifications, a really clean and quick experience, etc.
Those aren't really things exclusive to apps though.
For me, I have 122KB for first load (mainly images) and 3.9KB for subsequent loads, although I'm not going particularly fancy with my current theme.
I haven't even really started optimising it by doing things like pushing JSON back and forth more instead of doing full page loads.