Elon is a genius! He removed the bird, symbolizing the loss of freedom for its user and his company's inability to soar to great heights.

The bird leaving indicates an impeding catastrophe about to hit his company and the new symbol "X" is just as clever, because that's the sign people will click on when they go uninstall the app. Soon, the relationship between Twitter and its users will be nonexistent, just like Musk and his "X" wives