This is quite possibly the worst logic I've ever heard. So because YG beat someone bare-handed, that means he's achieved a sword without a sword level? Thus anyone who uses palms achieves the same metaphysical level? That's not even reasonable.
Also, the whole point of the sword tomb was to show a level of progression, each stage being something that triumphs over the previous stage. There's no point in DGQB moving from a heavy iron sword, developing a ton more internal (a level that YG never reached), just so he could swing around a wooden stick to be exact same level as he was before. The whole point of "overcoming a sword without a sword" is that the philosophy is that, since a sword is 'dead' and a person is 'alive', living beats dead, and thus a person who has reached that philosophical level would literally be superior without a sword than with one.
Because it's a philosophical axiom, DGQB's attainment of this level is philosophically similar to SM's attainment of enlightenment, in which he somehow manages to have more internal energy than XZ who has three very long lifetimes of very high internal. They represent the very pinnacle of two different metaphysical philosophies.