When I did driver's ed they actually got a semi cab and had us all sit in it so we could see exactly how the blind spots work, even with fish eye mirrors. The cab is so high up you'd have to crane your neck to see most cars down there.
Proper mirrors would allow the driver to see most of those side blind spots, or at least tell something is there. A fish eye mirror at the bottom would catch anything missed by a flat mirror. The important thing is to not hang out in those areas when you can go ahead and pass. And don't try to squeeze through when a truck is swinging out to make a wide turn, because at some point he definitely can't see you, and may not even feel you get run over.
Do you mean the driver side blind spot? The one on the passenger side is real depending on the size of your vehicle. I drive trucks and while it's not quite as big as this shows there definitely is a blind spot where I cannot see the car that's level with my door. A pickup can generally be seen
Edit: I looked closer and just realized he is driving on the wrong side this isn't OK
So ya you are mostly correct there is a small blind spot drivers side but not that big