What about separations in teams where designers don't mess with backend programmers code? Updates and parallel works on the frontend and backend projects withou

What about separations in teams where designers don't mess with backend programmers code? Updates and parallel works on the frontend and backend projects without issues? What about servers that respond with minimal data and consumers that deal only with displaying the received data? Pushing code, re-compiling and restarting webservers all because a button had to be made green or its shadow changed? What about CI/CD, automated tests, automated migrations, builders and compilers consuming dollars and energy for that button change? I'm happy with building SPAs where it makes sense (myaccount/admin). The problem is Javascript and its ecosystem but you could very well go with Ember which is stable as...and be relevant for years.