Very neat
A question would be how vague the operators are about stating the exact location of their masts and how much does that affect any derived weather modelling.
Note this would be for weather modelling and nowcasting rather than climate change.
Thumbs up for clever use of data to derive secondary information.
As to why it's never been done before I guess the operators never cared (it's a problem they can't do anything about other than re-site their masts) and the researchers who never asked, probably because they either didn't think the operators kept this sort of data or would not release it to them.