What was his inspiration for studying his Villains again? Honestly I forget, wasn’t it because he was spying on Ben at all times or something? You’d think it’d be somewhat difficult to study events that happened in another dimension (ledger domain).
That... wasn’t the point. The point was the fact that ’Erase Everything from Existence’ is a blatant example of hyperbole, an exaggeration. Heck, Alien X was literally set up for execution and almost died, only living because he won a single Gladiatorial match and therefore wasn’t killed? It’s quite obvious that he doesn’t literally mean to erase EVERYTHING, especially since we have no proof he could erase EVERYTHING. We can’t assume.
Or it could be referencing the time Ben got killed by Vilgax, only to be resurrected as Diamondhead. Or the time Way Big got Thanos’d by Eon, only to reveal Ben was perfectly fine- that one was so convincing, Gwen shouted out in fear. Or it could be referencing the multiple times Ben was near death/dead only to be resurrected or healed by an outside force, such as the Omnitrix. Heck, the very example you’re referencing is saying Sub-Quantum level despite the Resurrection feat being of the Soul, are you telling me Ben’s body has to be ripped apart to shreds for the Soul to no longer exist? That’s strange.