It’s a bit like asking if intentionally fouling to force free-throws and a possible turnover late in a basketball game is against the spirit of the rules. Maybe yes as they were originally conceived when it was a recreational activity years ago, but at the modern competitive elite level it’s very much part of the game.
I'm a regular GeoGuessr player and I use the meta stuff mainly for getting quickly out of boring locations without losing too much points.
For example South America and Africa are huge and it's really no fun getting dumped somewhere far from any civilization and having to drive hours to get any real life geographical hints.