I wouldn’t have an objection to having the existing “dangerous driving” etc laws rewritten to cover dangerous use of a vehicle where vehicle means bike, Segway, whatever.
However…
if I run at someone shouting ‘get out of the way!’, they don’t and subsequent die of their injuries then I’d expect to get done for assualt/manslaughter.
The problem is that because you’re in a car/on a bike it’s more difficult to convict of assault which is why reckless/gdangerous driving is a separate offence,
The cyclist referred to in the debate could have been charged with manslaughter but he wasn’t. I suspect the reason the CPS didn’t (they wouldn’t be able to make it stick through either intent or gross negligence) would also be the same reason the guy in question would be unlikely to have been convicted by any dangerous driving law.
Death by dangerous driving only exists as an offence because juries weren’t convicting drivers of manslaughter because they didn’t like “blaming” someone for “accidents”.