Can confirm it still happens.

Steps to reproduce (for the most part):

- Use the plugin
- Don't restart (I've yet to restart once since I installed it yesterday and I'm a bit afraid to do so now)

- Sit on a tab in the middle of the window

- Ctrl-T to create a new tab

- New tab scurries backwards to sit after the one you were on when you Ctrl-T'ed

Good luck! Awesome extension for managing out-of-control sessions :D