Yeah, probably. If you're operating a dangerous piece of equipment the onus is on you to do it safely. Bikes are more dangerous than shoes, cars are more dangerous than bikes, and commercial vehicles are more dangerous than cars.
It's not actually that difficult to drive safely around cyclists. Go the speed limit, pay attention, and don't pass unless you can do so safely. Yes, this means sometimes you will go 15 in a 45mph zone for a couple of blocks. If someone finds that burdensome enough to risk killing someone else then I have no problem calling that criminal neglect.
This statement doesn't seem to be consistent with the law in the US. Involuntary Manslaughter is a crime, and it explicitly covers cases in which the crime was not committed on purpose.
Piloting a vehicle on motorways - regardless of type - is a privilege that carries a certain level of responsibility. If someone in a vehicle can't be bothered to exhibit that level of responsibility and kills someone else who was exhibiting that level of responsibility then it should be a crime.
A cyclist could kill a pedestrian as well in an unfortunate accident, should we treat that as a crime?