Duty Finder : "Join party in progress"

I wonder if players who choose to join party in progress and clear the dungeon by doing so will receive the same clear reward than the any other people?

There are several case during the congression that member in party is dc, and can't log back. This feature would benefit a lot if everyone do using it. However nobody will like to use it if they can't get the same clear reward, which is usually the goal. (eg. finish out the quest's duty. get 100 tomestone.)

I got it earlier when I joined my gf through the Duty Finder (first time it worked) when their tank dropped out.

I've used the feature but sadly every time it looks like the PT wiped with themleaving.