While no video tells the whole story as you state absolutely nothing else thus far even remotely supports your suppositions on why the gun may not have been in his holster. While anyone can suggest a multitude of reasons why the gun may be out of the holster and on the drivers side floor board nothing suggests he did not draw it. If I am incorrect, please point out what I am missing.No, it doesn't. There are any number of reasons his holster might be empty. That, in and of itself, is just part of the entire situation. On the other hand, it could mean he tried to draw his gun. We just don't know from only that video.
If I'm carrying, I might remove my gun from the holster if I go somewhere where carrying the gun is prohibited. A post office, for example. I sometimes forget to put the gun back, or maybe I'll just leave it where it is because I have another stop to make where I can't legally carry.
Things are rarely as black and white as we might want to believe.