I think the answer to your question is the simple and unfortunate one: groupthink.

So many businesses are pushing AI hard. People with varying levels of job (in)security want to be seen as "leading the charge" into a post-AI era.

LLMs can do some really impressive things, don't get me wrong. But I regularly find massive blunders in the code it produces.

And that actually makes sense if you understand how LLMs operate and the quality of software on GitHub.