I think it is that its not useful for the end customer. Every anecdote I’ve heard about LLMs helping someone with their work were heavily qualified with special cases and circumstances and narrow use cases, resulting in a description of a process that was made more complex by adding the LLM, which then helped them eliminate nearly as much complication and effort as it added. These are the stories from the believers.

Now add in the fact that almost nobody is on a paid service tier outside of work, and all the paid tiers are currently heavily subsidized. If it has questionable utility at today’s prices, the value will only decline from there as prices rise to cover the real costs to run these things.