I see the need for SPA on every site that has internal links and dynamic state of any kind. Seeing a flash is annoying and so is tapping back button only to see

I see the need for SPA on every site that has internal links and dynamic state of any kind. Seeing a flash is annoying and so is tapping back button only to see the cached version that is not true anymore and forcing a reload. Interop between web pages (and tabs) is practically non-existent. Even right now on HN I’m about to post a comment, and the whole “go back” stack will become irrelevant. SPA is ironically not needed mostly on single-page sites. When I see comments like this it sincerely puzzles me what your common user stories are and/or how you managed to train a blind eye to all this.