The only clear takeaway from this is that Officer Wilson is a 'don't photograph me or I'll arrest you' LEO, because Officer Wilson says that. It doesn't mean that's why Officer Wilson arrested the videographer.
The other possible takeaway is that Officer Wilson's brief description of the camera moment doesn't seem to mesh completely with what video we see. Obviously, Officer Wilson can't write everything in his report. However, the videographer is never shown with his camera in Officer Wilson's face in the clip provided, although that's what Officer Wilson says in the incident report.
The incident report certainly doesn't address Officer Wilson's 'you photograph/I arrest' moment - but I wouldn't expect it to do so.
As I said in Post 1, I thought people may want to be aware of the video before it appears elsewhere. As is clear from these FR posts, different people draw different conclusions from it. And if conclusions vary so widely on FR . . .
But would that not reasonably seem to suggest that is about when the initial contact or exchange between the two started?