I use both scripting and models to generate diagrams and I think there's space for some simple balance. Basically there will be things we repeat often enough, where we want a fast, detailed, repeatable solution. And there will be one-offs you will ask for and if it's wrong, you'll fix be hand.

There's space for both and we'll probably migrate the best ideas both ways. (can't wait for a local fine-tune which can do ad-hoc diagrams with a pleasant layout in excalidraw format) I don't think either way is going away soon.