[bradstewart]

New things are coming out, Meta's "prophet" for one. I've been pretty impressed with it in a "just throw data and don't even think about parameters" sense.

But the fact is, ARIMA models work. So people keep using them. And you can see what they're doing, and understand why, and how to tune them.

[nerdponx]

Prophet isn't necessarily new either. It's "just" a linear model, with some specially-crafted features that work well for the specific problems that Facebook/Meta had at the time when they built it.

It's also not considered a good general default choice for time series forecasting, but that's another story.