That will be the case with any vehicle, no matter the size. All the visibility in the world won’t help if the driver is looking in the wrong direction.
If I'm riding a bicycle, I am unlikely to hit a person coming up on my right no matter how focused I am on the traffic from the left. The bigger the vehicle, though, the easier it gets because there's less and less visibility of the pedestrian to pull my attention back.
Granted I should be using the little blindspot mirror anyway.. but old habits
As a frequent pedestrian I also show some caution around vehicles. For instance I don’t charge out in front of a vehicle unless I’ve made eye contact with the driver. I don’t walk right behind vehicles while they’re pulling out in a busy parking lot. And so on. If you’re worried about safety there are many strategies to keeping yourself safe.
But that is not going to do you any good, if you get hit while walking or biking.
As an example there are sadly too many accidents involving a truck making a right-turn and a person biking.
Being extra careful when walking/biking is the reasonable thing to do, even if that means waiting at the red light.
I think that the trend towards larger vehicles may exacerbate the number of casualties caused by careless driving, and I wonder if all the safety features unintentionally foster a sense of complacency.