Lost daily frost emblems and got quitter debuff after everyone in dungeon left.

As the title says, after the healer left in the 1st minute of the dungeon (for which I was waiting for 25mins), everyone started leaving. In the end, I got my quitter debuff (no matter I NEVER quit) and on top of that, when I tried to requeue, I saw that i would only get triumph emblems. Is this how it is supposed to work??
https://imgur.com/a/nN7UF51

Edit: After I relogged, the daily frost emblem reward showed up again normally.
But still, why get the 10min quitter when the others leave the group??? :/

Yes, you are supposed to get a cooldown, but no, you should be able to get eofs. Are you sure you didn't do a heroic already? See if you are saved to any of the heroics.

There's a soft deserter of 15 minutes. Everyone in the rdf group gets it as soon as you enter the dungeon.

Ok I got it. Thank you.