How exactly was it careless?
Not “careless”, “careless driving”. The offense of “careless driving” has nothing to do with being careless or not.
Taking your hand off the wheel to make hand gestures is also careless driving and there have been convictions, including where it’s resulted in cyclist injuries. I wouldn’t trust the witnesses or Metro reporting to say whether that happened or not in this case.
Using the horn to intimidate other road users is also naughty.
Technically the cyclist did nothing wrong (I don’t think anything he did can be construed as obstruction), but the ambulance driver did bend a few rules. Technically; and the whole dying baby thing means we ignore the technicalities.
That’s why I find the Ambulance service statement a bit disturbing. On the one hand it’s great to see the management defending their employee / third party contractor providing services to the NHS but on the other they didn’t exactly cover themselves in glory.
So not a great example of professionalism or tolerance, but like others have said a bit of a click-bait article to stir up a flame war by the Metro. I suspect, but have no proof, that there may be some selective quoting going on.