Your other points are irrelevant Canelo was a challenge yes?, so he has at times took them Jacobs at the time was too
If GGG fights Plant, all the people who claim now he wouldn't because moving up is 'too much of a challenge' would turn around and say Plant was a limited fighter and GGG only went up to avoid killers at 160. Golovkin TKO Plant. Why? Because when Golovkin doesn't respect your power he can just close in and brawl and cuts off slicksters pretty well. Plenty tried to fight on the bike and got nailed anyway.