(a) there's nothing wrong with using Twig on the PHP side to keep design and data better separated - no idea why the theme Jedi council would disallow that and (b) Nice job Kirby - but man if this is what the future of doing theme development is (literally hundreds of .js files and having to re-create everything you get 'free' today within PHP) -- then I'm going to find another hobby.

Generally, I find that a well designed PHP project that uses .js to make the UX better, is a nice balance. I just don't understand the push to completely abandon PHP. Again, all this is a hobby for me so I am probably missing some key point somewhere.