I didn't say it was only for sneak attacks, I'm saying that feat for spider sense isn't incredibly relevant as it's application there is nothing new or jarring enough to sway my opinion. Deku out classes Spidey in skill easily. With the spider sense, Peter can keep up enough to dodge Deku's moves. Pre cog is good like that.
What I am trying to get across to you is that Spidey sense is not consistent enough to beat Deku. Spidey loses hard in cqc without spidey sense, he loses at ranged, his LS is weaker, his combat experience is lesser, and his opponent analysis is incomparable to Deku's.
What Peter has is the spider sense to even the playing field despite all that, but it is not enough. Reacting to Deku's attacks is not enough if he's throwing them out consistently and always expecting a counterattack. Peter needs to consistently dodge Deku's attacks to win, because even a couple hits will be wearing him down with the AP diff. Peter needs to be 100% on point in this fight, but the spidey sense is not consistent unless he focuses. The fight with the drones showed this. If his spidey sense was as perfect as it was in the hallway as it was outside, we wouldn't be having this conversation.
The spidey sense is not infallible or always active or perfect. It comes and goes as it wants unless Peter focuses solely on using it, and persists for a single sequence that could be considered dangerous. Deku is going to be tossing out strategies and attacks that Spidey needs to adapt to immediately, and he needs the spider sense for practically every single one of them. The spidey sense is good. It is not that good, especially against someone with Deku's mobility and skill.
He dodged those six drones with his pre cog which I've already said is enough to dodge Deku. The illusion part is irrelevant because he closed his eyes, so they didn't affect him at all. It is his best skill feat to date, I am not downplaying it. Him getting his ass kicked by the drones outside, however, is not impressive for his skill. You phrased him fighting those drones as if he was handling it easily. He wasn't. He got stomped on by their numbers and barely survived, only because he had a way of turning them off so they didn't obliterate him by going for Mysterio.
Peter w/o spidey sense << Deku Peter w/ spidey sense > Deku
He loses if his pre cog isn't consistent enough to help him dodge every attack Deku sends his way. Which it isn't. He can't focus on spidey sense for the entire fight.