Because you have to be an expert at both of these to be able to get a group that won't quit after one measly wipe when you are learning the fight.

I wiped on all the other EX modes and because it was cross realm queue I slowly started to learn what to do.

You can't learn what to do with party finder because everyone expects to one shot dungeons, it's really unfair for people who don't have a static raid group.

Please allow these extreme modes to be queued like the other extreme modes .