This is just the first article in the series. I'd recommend reading all 4 articles before rebuking this one.

https://jacobian.org/series/estimation/

For example, here's an except from the SWAG article:

> The tradeoff is time: estimation techniques, including mine, require some time to produce any level of accuracy.

> Sometimes, though, it’s less important that an estimate be accurate than that it be quick.