Nice to see you around the community, @Willheavy.
Yes - I can confirm that thumb ratings are station specific. Giving a thumb rating to a track on one station will not have any effect over any of your other stations.
For example giving a track a thumbs down will only prevent that specific track from playing again on the station the rating was given on. It will not prevent that track from playing again on any of your other collected stations.
This holds true across all devices and app versions.
If you are experiencing issues with your stations playing tracks that you feel are out of place, I recommend checking out the accepted solution to this thread to help get them back on track: Tips for better stations
I hope this helps explain.
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