So, I just skimmed the discussion thread, but I am not seeing how this shows that CCC is not impressive. Is the point you're making that the person who opened the issue is not impressive?
Yes, the bear is definitely dancing.
But a few feet away there's a world-class step dancer doing intricate rhythms they've perfected over twenty years of hard work.
The bear's kind of shuffling along to the beat like a stoner in a club.
It's amazing it can do it at all... but the resulting compiler is not actually good enough to be worth using.
No one has made that assertion; however, the fact that it can create a functioning C compiler with minimal oversight is the impressive part, and it shows a path to autonomous GenAI use in software development.