Dangerous driving would be a non-starter due to its legal definition.
'Driving that is far below the standard of a competent driver or a prolonged period of inattention.'
There's some subjectivity there, but the driving complained of certainly wasn't prolonged - the vid is only 10secs and the incident takes up less than that.
Is barging past a cyclist at a traffic island 'far below' the standard of a careful and competent driver?
I would say not, it is below that standard, and/or a momentary lapse of attention, which is the definition of careless driving, which in turn is presumably what was charged.
A report outlining the circumstances of the incident, based on witness accounts and in this case camera footage, is then submitted to the CPS (England/Wales) or the Procurator Fiscal (Scotland). It is then up to the CPS/PF what charges are brought to court.
Speaking for England, that is not correct for most less serious offences.
Police officers have charging discretion over those, at least in part due to constant complaints from the CPS of being overworked.
There was a high profile case a few years ago in which a cyclist was knocked over and killed in Regent Street, central London, by a hairdresser driving a Mini.
The Met inspector dealing with the case decided no criminal charges should be brought.
The injured party's family duly went crackers, and a QC engaged by them accused the inspector of acting outside his powers, saying he should have referred the case to the CPS.
The inspector responded with a copy of the relevant official guidelines which clearly stated he did have the authority to take the decision.
Mr Clever QC was thus left looking rather stupid.
In his defence, he was not a specialist in criminal law.
Members may recall there was crowdfunded private prosecution of the driver, which inevitably failed because the Met copper had interpreted the job entirely correctly.