Additionally, I don't believe instanced content in WoW will contain exploration and slow dungeon crawling any longer. The playerbase hasn't been groomed for a Blackrock Depths-esque experience. Kara is similar to those oldschool instances in some ways, but without scaling rewards no one will run it after a while.
And what do you know, it's becoming a 2-tier Mythic+.
Easily repayable content with easy rewards is the mainstay of this game's instanced content from now on.