Silver is one of those guys whose reputation would have been a lot better off if he'd never signed up for Twitter, but I'll still got to bat for his skill at crunching numbers and explaining what they mean.
That said -- and he'd be the first to admit this -- his model is built on historical data and therefore it's at a disadvantage in the face of unprecedented events. I agree that his model didn't underrate Trump's chances in 2016, but a whole lot's happened since then and it
did significantly underrate Democrats' chances in 2022.
There's also been a lot of reporting that the polls were wrong, by people who stubbornly refuse to understand what polls are for and what margin of error is.
The polls weren't wrong. To the point of Silver's forecast model, if you pull up the
2022 forecast and compare the different models (use the "Pick a Model" button on the lefthand side to switch between them), you'll find that the polls-only model looks a lot more like the final result than the "deluxe" model, and somewhat more like the final result than the "classic" version.
Historical models can't show us the effect that, say, the Supreme Court overturning Roe or the likely GOP nominee being indicted for trying to overthrow the government will have on the election. Polls can, but as always they're a snapshot of a moment in time, the farther out from the election they are the less likely they are to be accurate, and the appropriate way to interpret a "lead" of within three points is not a lead at all but a dead heat.