I made a post in the 'bug thread' about this issue on 4/20 and Markus responded...his post is
HERE
He says any changes to things like height, weight, handedness, etc here made by a non-commish GM are not included in team exports so editing them will not change them in the commissioner's copy of the game.
Personally I see no point of having this editor tab available to non-commish GMs but as long as it doesn't allow GMs to change this info it really shouldn't be a huge issue.