This is literally just pointless semantics. The point is, Sasuke doesn't need to see Shigaraki to know he should activate amaterasu/kagetsuchi because the speed at which he can see ≠ speed at which he can think. This was explained to you 3x now, at this point it's not that you don't understand what's being told to you but that you pretend you don't so you don't have to interact with the actual argument.
Ay moved so fast amaterasu that spawns on perception only hit an after image and then literally ran behind Sasuke faster than Sasuke could even see
And yet Sasuke could cover his susanoo in amaterasu in time
Kagetsuchi seems to. Given that Sasuke couldn't even see the Raikage run around the room behind him but could still activate Kagetsuchi in time.
And Kagetsuchi allows Sasuke to spawn it completely around himself.
The only time Ay touches Sasuke directly is before Sasuke even activates the MS. After that he only hits the susanoo and even that only after Sasuke covered it in amaterasu.
Ay runs around Sasuke faster than Sasuke can move an inch. (most impressive)
Naruto runs circles around Ay despite starting literally inches away from his punch. (slightly less impressive on paper but actually makes Naruto out about 70x faster than the Raikage)
Obito even simply becoming a TTJ perception blitzes both Naruto and 3 tomoe Sasuke (possibly most impressive, even Naruto could only tell what happened due to his personal ties to the bijuu)
So like I said
EMS Sasukes perception and susanoo >~ unstable Juubito >>> kcm1 Naruto >>> Ay4 >>> MS Sasuke >~ 1c
Yeah, a very slightly higher value with a smaller jump above it.
Burns Shigaraki until he's completely gone.
And nothing stops Sasuke from just deactivating and reactivating the susanoo if necessary.
I don’t need to since I'm not saying he does.
If he doesn't it's even worse for Shigaraki because then he wouldn't be able to sense any danger from it until it catches him offguard.
That aside Sasuke uses genjutsu relatively soon and often here.
He used it on Bee the moment Bee became too difficult to just beat physically. He basically
opens up the Ay fight and when it fails against him he instantly hits his teammate with it. He
uses it on Danzo in the first chapter of their fight. He
instantly uses it on the bijuu and on Sakura.
So it's not a frame 1 move unless he sees the opponent far surpasses him in stats, but it's a move he's extremely likely to pull out very soon.
That's not really comparable whatsoever.
You can't really compare the danger of a punch causing spiritual damage to eye contact causing mental paralysis.
No not really. Danger sensing can vary heavily in potency and accuracy.
One danger sense might basically act like straight up future sight and another might just sense general hostility and bloodlust.
Shigarakis seems more like the latter. So you'd need evidence it can precisely detect something like eye contact causing mental paralysis.