I call BS. I still haven't had AotC this raid tier, and I manage to get into plenty of hc raids just fine without any lying. And you know what, there are plenty of wipes as well, and after every second wipe, we have to reform the group cause of leavers who hoped this would be much easier (probably those who actually farmed the fights before).
Being able to segregate the ones who know the bosses, and the ones who do not know, will make it better for everyone. Those who still don't know the fights (and how can you without kills?), will have to team up with players of the same situation, and once they have it on record, they can too sign up for one shot groups.
So you think it's shitting on everyone else cause better raid players ain't carrying your ass? Maybe you do know the fights (learned through guide/vids), but that just makes it extremely rare and it hurts you the most. But all in all raider.io for raids would be very welcome (can show your alt there as well).