Is this the corresponding lesswrong post: https://www.lesswrong.com/posts/TpSFoqoG2M5MAAesg/ai-2027-what-superintelligence-looks-like-1 ?
Committing to a hard timeline at least means making fun of them and explaining how stupid they are to laymen will be a lot easier in two years. I doubt the complete failure of this timeline will actually shake the true believers though. And the more experienced ~~grifters~~ forecasters know to keep things vaguer so they will be able to retroactively reinterpret their predictions as correct.
I think Eliezer has still avoided hard dates? In the Ted talk, I distinctly recall he used the term "0-2 paradigm shifts" so he can claim prediction success for stuff LLMs do, and paradigm shift is vague enough he could still claim success if its been another decade or two and there has only been one more big paradigm shift in AI (that still fails to make it AGI).