Honestly its better with the current format. Because to find a team you have to communicate before the raid even starts so you don't have to worry about getting thrown in with someone with no way to talk, while trying to start opening the door. Making players find their own raid partners meand they are committed to the 1 hour+ raid. Match making would just bring in some kids who just half ass the raid and drop out if they wipe a few times and ruin it for everyone else playing.