If I understand correctly, this "issue" only shows up when a wearer is actively changing the watch face. Not when the watch is glanced at or used in any other way, correct?
So the user knows that they are not getting an accurate display of the time in the moment that they are making this one change.
Maybe I'm not OCD enough, but.... who cares? The user is causing this display to change to a default (presumably, it's so wearers can see what a different face looks like when it's being used) while they change the face. It's not something the watch is doing on its own, something that could fool the wearer into getting the wrong time. User changes face, face temporarily switches to its default display while the user is making the change, watch goes back to normal, displaying the correct time.
I just don't see how this matters, in the least. Does the wearer even need to know the correct time in that one moment when, presumably, they just looked at their watch before changing the face? I mean.... the correct time was right there a second ago. Time did not change. The user is making the change. No confusion.
If I'm wrong in my understanding of what's happening then please let me know. But if all it is is people who can't bear to look at 10:09 for a moment while they're actively changing the face, when they know they are causing the change themselves, then I just don't see the issue.