So sad. You're viewing humanity, and reality itself, through a very objective lens. There is magic in every day: have some fun! Otherwise, quit complaining.
Tessellation is simply required to render the IR. The viewport is guiding the cursor to the vertices (perhaps a bug) but the engine is not forcing their use. I also built a ray caster :)
(forgot to mention, it's wired up to Claude so you can vibe CAD, like OP but with a few more steps - I'd like to train a similar model soon! I also wrote about my first stab at this https://campedersen.com/cad0)