If there's a single case of someone playing honor mode from scratch and beating it, and not making pitstops along the way to experiment some other way, or watch YouTube videos, my hat's off.
There's way too much stuff to accidentally walk into. Some argue that's kind of the point of such a tough mode anyway, to give people with too much time on their hands harsh encounters to plan for with full knowledge aforehand. The "horizon effect", in computer science and chess terms. You can't see the danger until it's too late.
"Whaadya mean I beat Kethric finally, and this giant thing pops out?" And good luck with the click-door-is-locked courtyard fight. I don't think I've seen any honor mode video that doesn't skip that stuff with invis and go straight to the spinal cord.
I'd adjudge any such claims as suffering from writer's embellishment far more likely.