FBI revises 2022 crime statistics – 4.5% increase, not 2.1% decrease

The crime research is here:

https://crimeresearch.org/2024/10/the-revised-fbi-crime-data...

> The FBI doesn’t simply count reported crimes. Instead, it offers estimates by extrapolating data from police departments that report only partial-year data. The Bureau also makes estimates for cities that report no data.

It seems like this is quite a problem. How can you expect any sort of accurate numbers if you are just guessing what the numbers are?