I'm still thinking you're not playing the game right now.. or watching MDI for that sake. Because your knowledge is clearly outdated.
In Shadowlands MDI Rogue was only used in one dungeon.. Necrotic Wake. And that had nothing to do with shroud or other Rogue utility. It was simply because of a broken Legendary which allow Rogues to cheese the weapons in Necrotic Wake. But Blizzard have already announced that this will be fixed.
DK has consistently been a part of the MDI meta in Shadowlands so far together with Monk and Mage. There have only been few exceptions where Hunters and Boomies have been used instead for some special cases.
I'm happy to discuss this topic with you, but it makes it difficulty to make it productive when your knowledge is clearly not up to date.