If people think that LLMs will get very good at tons of things, they will invest quite a bit of time figuring out how to work with them (even if they are not that great at useful things right now). If those people then learn that LLMs will never get very good at so many things, they will then tend to invest less time in studying up on how to best use them.

I know I write off some of the time I spend working with LLMs as an investment in the future. If someone told me this is as good as they'll get, I would definitely invest less time working with them.