It seems to me that the razor was not as sharp as it should have been. I suspect that the barber was trying to get more shaves than he should have out of the razor -- probably an economic consideration.
Let's hope not! It should've been a new blade.
It's probably a combination of lack of prep, as you suggest, too much pressure & lack of skill.
Tugging is not something that i experience. I used to when i was new to honing, but not any longer.