It's better than nothing, though. Often the alternative isn't "let's not use a JS framework and just build a bare HTML site from scratch", but rather "let's just use the framework and forget about the few users who disable JS."
So while Next & SSR isn't a perfect solution, it is often the only practical thing to do when the team or company doesn't want to spend resources on a no-JS solution.
that's a humble baseline, isn't it?