> Scroll snap is a useful feature. The way you can tell that it's useful is because a ton of sites are already doing it, but in a manual, hacky way with JavaScript. This works better and uses less code and CPU. A win all round.

Useful in the same way that popup windows are. Developers certainly liked those - they were such a useful tool to annoy users with! And now "real" popup windows are blocked and developers create them the hacky way with JavaScript. The circle of life.