Ridiculous assertion. If someone dislikes croutons on their salads, that doesn’t mean that they don’t like salads.
As far as dungeons being the “main delivery of content”, I’d take with a grain of salt- there’s not a dungeon in every zone and you probably get more “story” out of the questlines of zones. The Big Reveal of the zones with dungeons might be IN that dungeon, but that’s weighing the last chapter of a book against every other chapter of the book.