If you are so sure that you are not lane hogging post up the footage BEFORE the incident.
I will be the first to apologise if thi sproves me wrong ...... but I doubt it.
Looks like you were in the wrong lane, do you have footage previous to show you were overtaking? Apologies if this is not the case, but the video does look a little suspiciously cut!
You are sitting in the overtaking lane with 2 lanes clear to your left.
Move over and let people overtake you, then this wouldn't happen.
I agree there is no need to be aggressive, but if you do 40K miles a year. You must understand not to sit in the outside lane???