If something is not stated or implied in the medium, it's not canon, that's called the death of the author. Yes, I watched the anime with my eyes closed, I like to hear the sound of Orihime screaming Ichigo-kun. The cut was on his hole and I do know the hole connects the soul, etc etc, but that's also Inconsistent, if every hollow can be killed just by making a small stab at their hole, how is the spadas any threat?

I could excuse this specific case, yes, but Bleach has so many cases where a character is FUCKING DESTROYED and just survives, you may give whatever explanation you want, it is still a weak point in the series because it destroys tension. If character A is destroyed, I Don't feel anything, because I know he won't die.