If cyclists suddenly entered the guided busway then perhaps not, surely the point of a guided busway is that you can crack along a bit because it is entirely segregated like a railway. Trains certainly can't usually stop in the distance they can see.
It was disappointing in the video to see a cyclist cycling along the bus way track rather than pushing their bike around.
The driver has eyes, and should be using them. If there's anyone close the the bus way he should be prepared for them to do something stupid, and moderate his speed accordingly. If you or I are driving along and see a car waiting at a side junction, or children walking on the footpath, or other such hazards, we adjust our peed and vehicle positioning to account for the first rule of nature and motoring - other people do the bizarrest things.
Even on the guided section, which this was seemingly not, it isn't a railway with people physically segregated from the tracks, and he should moderate his speed when he sees people about, because they may obey the first rule of motoring and do something bizarre. He is driving a road vehiclenin a public environment, and live everyone else is supposed to he should benbehaving as such. Blithely keeping his right foot planted leaves him no option but to do something stupid and dangerous himself when it all goes wrong, which was demonstrated beautifully in this case.
People do not simply materialise out of thin air. They can appear suddenly, but the mechanism that hides then from view, the parked car, the gap in the hedge indicating a drive way etc, are all indicative of danger. The only person anyone should swerve to avoid, and thus endanger everykne else aeound, is the one that teleports in front of your vehicle.
He was a combination of TFF, and not maintaining his visual drills.
He's not a hero. He's a chump.