Yes,
The important point(s) are that impact fix is the key element- depending on how you want to hit the ball you set up accordingly at impact (certainly as you're learning/ingraining or re-verifying)
and
things do change when you move from impact fix to address. One of those changes is that the face will close - if you don't let the shaft roll back (rotate)- that's really unrelated to the bending of the wrist- of course as you move the shaft back to address you would bend the wrist. But it's not really like the downswing in reverse where bending the left wrist closes the clubface- there's more going on- than just that one issue.
My other point was that the clubface doesn't have to close going from impact fix to address- you can keep the face where it was - which as you move the shaft back to address -will require that you basically have a stronger looking grip - since you're not rotating the leading edge closed- you are fixing the leading edge- what happens is the shaft rotates around that fixed point.
Optics... Probably when going from Fix to Classic Address, the Clubface may appear Closed to some, but may not be. Especially depending upon the design of the club(offset, etc.).