Question about Dungeon Queue

Hello, I've got a question, hopefully I can get answers here.

Today I've queued into an RHC with my Druid (Resto), and it popped into DrakTharon Keep. As it sometimes is, Tank left (maybe he wanted FoS?), and as a chain reaction the dpses left after him aswell. So I was alone in the dungeon, i decided to scout through the dungeon, went to the last boss in stealth mode, and thought maybe i could queue now. I entered the queue, and for some lovely reason it popped almost immediatly.

The group formed right at the end of the dungeon, and people were happy they dont have to do the whole dungeon only 1 boss and get the EoF Reward.

My question dear people, or maybe a GM could answer: Is it allowed to queue at the last boss, while other bosses are not killed nor trash is. Is it prohibited skipping other bosses and trash while going to last boss in stealth mode?
Thank you for your help and answers ^^

Perfectly fine in my eyes as a player. People skip bosses that aren't necessary anyway. There's no "All bosses must be killed" to complete RDF.