I'd take this one step further to point out that web programming is a different beast from desktop programing in that you are attempting to tie a fault-tolerant

I'd take this one step further to point out that web programming is a different beast from desktop programing in that you are attempting to tie a fault-tolerant, low-bandwidth channel (the internet) to a strict, high-bandwidth channel (the CPU/RAM). Add to that impedance mismatches from latency, and I think anyone who expects to have a full stack written using only one language is kidding themselves!