Comment by marvinblum

This article doesn't seem to be thought out properly. I mean the name already suggests what Single Page _Applications_ are good for. They are useful when you want to build an application in a browser and not just a regular website.

State is probably the main factor why you would like to do this. I can agree on that SPAs are used in some places where they don't fit (mostly content heavy sites). But they are not a mistake.