I think the objection here is unrelated to the love or hate of LLMs. It's about the viability of this particular proposed open web API.
I personally use LLMs for coding assistance, and some home automation stuff, but I do not think this particular API is good for the web.
Meaning you do not want text generation in the web API at all, or you think the prompt API needs to be different? And if so can you give one sentence on how it should change?
https://github.com/runvnc/tersenet
If you glance at that then you may see that I am for the idea of leaner alternatives to the current web platform.
But in the context of the existing web API which has just about everything and the whole kitchen sink in it (hundreds of sub-APIs), I do not think it will really help anyone at this point just just stop adding features, especially major ones.
The web is basically an overlay operating system and has been for many years.