No, I don't think they were; while it's better to be Zen about these things the adrenaline jolt of being driven at by two tons of steel is pretty powerful, and the swearing is IMO not unreasonable. The threats of violence are all coming from the driver.
Just for the hell of it, I went back and looked again. As ever interpreting vids is a mystic art of divination but still.
It looks as if the initial "infringement" was the $x$ (look what happens when you use the shift-4
) pulling in slightly after overtaking, holding speed with the other cyclists, personally I've had a lot worse and more brown trouser close passes. Still not good, but no worse than a "7" on a 1-10 of London close passing.
It also looks as if the driver was inwardly fuming and looking for trouble because he reacted to the cyclist's shout - had the window open to shout at cyclists? who knows. That demonstrates in my view he deserves anything the old bill could have thrown at him, but looking more at the interaction.
Cyclist goes right into overdrive, calling the driver names with.... enthusiasm. At this stage, the driver hasn't actually combusted. So much enthusiasm though that he is spitting at the driver at 0:48. Unsurprisingly it goes downhill from there.
I wouldn't call the cyclist any names, because he was in the right, but I'm fairly certain in my mind that he's the same kind of human as that knob of a driver.
The driver isn't competent enough to hold a licence, IMO, needs banning and re-testing.
Really wish this could happen