The last bullet is just a straight up error on the part of the developer. The third... isn't real? What browser doesn't save form state? The first two are fa

The last bullet is just a straight up error on the part of the developer. The third... isn't real? What browser doesn't save form state? The first two are fair criticism but they aren't nearly as detrimental to the user experience as the typical single page app antipatterns (no history, no indication of page loading, refresh button is broken, etc). While it is of course possible to execute any design well or poorly, the observation that a typical single page app is worse than a typical multipage app is certainly valid.