Yes. looks like the taxi driver took offence at the hooting and stopped for a chat, sotw rode on by, apparently not keen on explaining himself and the driver came too close to have round 2 of the conversation, its muffled but sounds like 'whats your problem' as the taxi shoulder barges him off his bike. Poor car control I suspect rather than a deliberate attack, but either way, I wouldn't want to be in or near that cab.
From what the vid shows the first pass was too close and deserves looking at by the licensing authority, but cyclist with an agenda coming tooled up to fight a ton and a half of vehicle with an airzound is only going to have one winner when (not if) they meet mr angry.
I suspect if sotw reports it to the cops, the driver will have good grounds to claim provocation and the accident only happened because sotw didn't stop when it would have been easy to do so & driver felt forced into a risky manoeuvre by the cyclist hooting and then just riding on by when he'd stopped to ask if anything was wrong.