Why is everyone suddenly ditching LangChain?

Everyone was a fan of LangChain until a few months ago. Plenty of YT tutorials, Blogs, Reels but suddenly everyone is bashing them.

I have now started believing that AI industry works on wave. If something is trending (Deepseek and now Manus), everyone starts loving it suddenly and if something is being bashed, everyone starts hating it like they were living with those problems all over and now they got a chance.

What are your thoughts?