Paulo. Bambu was arguing with two different people about two different verses at the same time, and I doubt he knows about HxH as much as either of us do (though I can't Say for sure, he was pretty blindsided)
You know damn well that Wing explained how those "hax" worked. If you don't have the ability to Shroud yourself with Nen/Chi/Aura using the ability Ten (or in the case of other verse's something identical or similar), you get assaulted by the killing intent of other people's aura/Chi. In that case, at the basic level, It isn't about raw power.
But in Bleach, what Bambu was being blindsided about as you argued with him, resistancing via raw power is what is happening. Also, with Pitou and Pouf against Gon and Killua, Knov and Pitou's interactions, Kite's lack of fear relative to Gon and Killua, and Pitou against Netero and Zeno and Netero against Meruem, or hell, Morel and Gon, or Gon and Pitou, iirc, they all had power gap dynamics or immense bloodlust in their Nen or both that made fear inducement possible or impossible depending on which of these. Meaning. On top of what we already understand about Nen from Wing and Zushi and Hisoka, it's likely that when you feel fear inducement from a foe and you have Nen shrouds, it's likely either power gap or just a LARGE amount of bloodlust. And i'm Shaky on the latter.
On top of that, the heavy bloodlust idea seems to be negated by the idea that even in those cases, the only reason the bloodlust was an issue was because of the AP gap. Netero didn't get affected by Pitou's bloodlust the same way Gon and Killua did, and it's easier to assume that's because of AP differences. The bloodlust only matters because there's a huge gap in AP to make those threats a promise, and, well, that just circles back to AP differences.