I'm not sure what point you're making here. Tech is rarely the moat, you even get to that point at the end of your post. The "vibe coding" advantage is faster time to market, faster iterations, etc. These things will help you get that user experience, integrations, etc.

Faster, faster, faster. All to release something that is slower, by people that now know lesser, with bloat that explodes. All for a yet another useless saas that nobody or fee people wants and a chance to virtue signaling your vibe coded product on HN. Real world successfull products are orthogonal to this approach, it doesnt work anymore in today's world