[SEMW]

The problem being there's no universal definition of "better". My guess is it's not a matter of "not being able to tell the difference" - it's putting bank statements in 'promotions' because people have been putting their bank statements there. People who want to receive them for their records, but not have them 'in their face' in their primary inbox.

(Should those people have put dragged them to another tab - maybe 'Updates' rather than 'Promotions'? Possibly. If you think so, drag them to there instead. That'll change it for you, and presumably, if enough people do that it'll eventually change the categorisation for everyone who hasn't changed it themselves).