I have ONLY WoW selected for Betas, as its the only game i regularly play. Hearthstone is absolute garbage. I played a few games when it first came out and promptly uninstalled it for wasting space. So why would Blizz think I would be someone to want a beta invite? Shadowlands? Maybe Overwatch 2 (since I occasionally play it) or Diablo 4 (same)? But the game I have not played in years as they can so clearly see?
Also, Hearthstone isnt even something you can select, or in this case, de-select on the beta opt-in page 