Yes I do think the Fodera Victor Wooten uses help him pull off every technics he can think of because of the ease of playing and the consistency of the notes all across the fingerboard.
I also think Micheal Manring would have a hard time pulling off his music without his Zon Hyperbass.
You can ask yourself why those big name doesn't play a Fender or any other Fender clone. They doesn't offert what they are looking for. Be it 6 strings bass, piezo bridge, multi-tuning, 24 frets, pickup different than J and P, active, better access to the last fret, better consistency accross the neck, a set up that a Fender couldn't ever match because of the way they are constructed etc etc etc. You know since a SX can be as good as a Fodera after a setup ... Victor, Anthony, Stanley, Micheal, Marcus and Steve could have same so much money ...
Fender or any other mass manufactued bass isn't always the solution. Everytime I see a Fender or other mass manufactured bass they play rock, funk, reggea or any other kind of mainstream stuff that anybody could play with some practice. When I see costum bass it is always in jazz fusion or solo artist or in extrem technical death metal band. So I think those basses offer them the opportunity of playing at their best, not be a burden, not held them back in their technical wizardry or any other creative ideas they may get.