"JSON is faster"
So I ended up drawing this crude diagram (in the air), successfully arguing that delivering JSON to generate web UIs does in fact merely add complexity and overhead:
server | client
|
+-- | --> HTML ------------------> DOM
| | ^
----+ | |
| | |
+-- | --> JSON |
| | e.g. React |
| parse + - - - - - - - ->+
| | / |
| v / |
| JS object --templating-> HTMLMight come in handy again sometime…