This is not talked about enough. We frequently ask whether it's too complex, but that assumes the objective is even sound. Anyone who has done significant work

This is not talked about enough. We frequently ask whether it's too complex, but that assumes the objective is even sound. Anyone who has done significant work on a full scale SPA using any framework (or no framework) would have to weigh whether it was worth it. And that's on two levels: 1) Was the additional effort and complexity worth it for the perceived improvements in user experience that were sought? And 2) were there actually any such improvements or, even, is the user experience actually worse as a result? Because I have to say that I'm not convinced. There does seem to be a period when AJAX first became a thing wherein the added responsiveness gained from judicious use of dynamic operations with partial page updates improved the experience over full page reloads exclusively. Then, someone said, "hey, if that's cool, then why don't we make the whole thing dynamic, fighting Web semantics (and standard browser behavior like back buttons and history) every step of the way? Not so sure that's a good premise or has led to a good result.