> they are problems none the less

I think this depends a lot on who the syntax is tailored towards. This compact stuff reminds me of APL and aspects of Perl. There's nothing wrong with highly specialised brevity. I personally love this syntax, coming from a place of moderate SVG knowledge and CSS fluency. Looks really cool and quick for prototypes. And even the example you posted feels mostly parseable on the first few scans. Nothing insurmountable, and in tune with most other news syntaxes and abstractions in this space tbh.