First point: the scabbards and Yanato sensed a strong presence which makes sense since they're experts in haki, probably above FI Luffy who was able to sense Caribou's evil from miles away. They assumer it was bad and got it confirmed once they saw Aramaki is a marine. The scabbards are the only good samurais left. Makes sense to me.
Second point: I agree. The dialogue was too on the nose and heavy handed. Maybebecause Aramaki was possède off at the sight of samurais from the country trying to stand up against him but it's still cringe. Brocoli boy is cringe.
Third Point: My guess was that Bartolomeo was in the vicinity of Wano to try and reach out to Luffy and Shanks was after him and they ended up talking about Luffy because he's IN Wano and the crew wanted to see how strong he was and all that but Shanks refuser because he wants to catch Barto first and enter the One Piece run.
Fourth Point: Maybe they're scared that Sabo is going to get more and more targeted and will eventually get captured and killed just like Ace. They dont want to lose another child in the ASL. I agree though, maybe Oda will explain it. Who knows.
Fifth point: I dont understand how you cant understand that tho. Its pretty obvious. Celestial Dragons were seen as evil gods and untouchable figures. The assasination of one of them is bound to create sparks and flame the flames of revolution. Also, they burned the flag of the Celestial dragons which is a declaration of war and they did that in the holy Land. This will surely influence others to do so too because it seemed impossible before.
Sixth point: I agree, but I care more about Sabo than I care about Dragon so i dont give a flying fuck. Dragon sucks
Bonus points: Kurouma said the admirals couldnt fight at their full power in Mariejois. The revos that outnumbered them were at à full advantage because they dont care about Marie Jois, Sabo also fought Fujitora before and he was pretty impressive and he has an advantage over Greenbull vecause fire>grass lmao. Fuck them admirals.
I agreee with the Yamato bit. I did not like that part at all but where did Yamato say that Kaido is dead to her? I dont remember that