For new projects I agree. Go jQuery-less.

But for existing projects that still work well and for which there is no reason or gain from updating the code and, for which, time and money would be spent for what is really a lateral move, I think it's fine to leave it as is.

And there are many projects like this where the JavaScript barely changes, jQuery is holding it in place and nicely and there's hardly any technical debt. There's no incentive to spend the money and time. Making a developer feel better is not really worth it in these situations unless they'd like to work for free.