The more people try to build simple and "elegant" front ends, the more us backend developers have to do to support them.

I seem to be doing a lot more "mashup" work than ever before, joining up disparate back end systems in order to hide it all behind a simple modern front end. In the past if I was developing an order processing system I would work on the view/UI side of things as well, now I expose the functionality via an API and let the front end guys develop a nice interface for it all.

Also lets not forget you don't actually want any mission critical, confidential or security stuff happening on the front end no matter how WebAssembly gets.

There will always be a backend.