No they are not. Well, first of all, most SPAs don't actually deliver on this promise anyway. But let's look into the point made by the author regarding the in

No they are not. Well, first of all, most SPAs don't actually deliver on this promise anyway. But let's look into the point made by the author regarding the inspiring example of Apple's app store UX, and trying to aim for that. We, meaning as an industry average, will not achieve that level of UX no matter the stack. Because nobody can afford it. It requires a team of top designers, interaction engineers, dev, QA, etc. That's the problem with the SC valley mindset. They assume every web property has this huge team of top engineers behind them, and that this is a status quo, and applies to the whole web. They have no idea what bubble they are in.