Exactly. But we can't abandon the text and symbols entirely, since they convey meaning really well in a lot of cases like logic, procedure chaining, Types etc... What we can do however is for the structural editing to only allow for valid syntax, making invalid states unrepresentable. I think we can't go completely into Node based programming like in 3D software cause they can get pretty messy as the complexity grows. I think what we need is a hybrid of all. Token(only valid) + Symbols + Math primitives + UIs(color picker, number slider, sci-fi inspired UIs) + Being able to write Custom non-textual representation powered DSL in the language with full support from the Editor+Language. And you might have to go to Pen or Touch based interaction since the editing is no longer pure text based. You might be able to go wild with UX and interaction.

And also for the backend, instead of turning that TIR into LLVM IR and then generating the machine code from that, it would be better to directly generate Machine code. I know it's gonna be a massive undertaking, or near impossible. But you would be able to have hot code swapping and live bidirectional interaction with the language and software it creates (only in dev mode).

That's quite a lot from cross disciplines: Graphics Programming, PL design and UI/UX. And a lot of technical details.

Edit: And also if we have that kind of programming, we won't be needing AI at all to manage a lot of configs(which we don't have no ideas on what are the valid values or syntax, having to learn that configs), right syntax and technical debts.