I took a very dogmatic approach to ECS on a project[1][2] but I'm not sure it ended up easier to read or write as a result.

[1] https://github.com/EamonnMR/Flythrough.Space/blob/master/src... [2] https://github.com/EamonnMR/Flythrough.Space/blob/master/src...

At the very least it proves you don't need OOP to do UIs.

It is more difficult to implement ECS (there isn't a long tradition of it and libraries like MVC has) but well worth the effort.

It's more suited to native UIs than webapps though.

I like ECS when designing certain kinds of systems but I'm not sure how relevant it is here. I'm also not sure it would be particularly useful for your average webapp.

so we hear since 2008

OOP is hanging on for dear life. ECS has its niche. But why do you want OOP to die?