So here’s the deal. This is my theory.
Umar wasn’t meant to be humiliated by the host. It was Teja who was supposed to bear the brunt if it all. When Teja crossed her line with Salman, Salman almost lost it yet maintained his cool and “softly” snapped at her instead of putting her in her place like he did to Imam in Season 6. Since the atmosphere had already spoiled and he had to move and not reprimand Teja as much, he shifted the blame onto Umar, who was pretty much the collateral damage in this whole fiasco. The problem with Umar is that he still doesn’t know how to play the game. He neither has the passion towards winning the show, nor is he putting in efforts to upgrade his game. He should know by now that showbiz is not for him. He needs to leave!