If I'm in title and I type my topic title, I should be able to press Tab and get to the next box. Instead no matter how many times I press Tab, I never get into that box underneath.

Can this be corrected?

 

How would I "remove the tab index from the editor entirely"?

You can't. That's why they are on a internal review. This needs to be done on core.

Oh right, well 6 months and still the same isn't promising