The raid and dungeon mechanics in TBC are Raid Finder level, just totally laughable 
. There is nothing in all of TBC as difficult as Mythic Castle Nathria or timing a M+20. You just exposed yourself as a total noob who never progressed in mythic raiding in retail or pushed m+ keys. Even Heroic Nathria is harder than anything in all of TBC let alone Mythic lol.