Magellan was so strong because teach didn’t know his devil fruit. With such a devil fruit that one lack of knowledge is all the difference
I agree about Magellan and BB.
I never said that Shiryu or Magellan would beat a serious BB but shiryu was released in order to deal with a man(and his crew) that he was confirmed stronger than Ace. From that perspective alone we can easily tell that Shiryu was a YC1 + character. I believe more but that's just me.
Now let's talk about iva, a YC2 character that lost to Magellan and Magellan only had minor injuries. Iva was the one that put Magellan and shiryu in the same level, while he knew about Magellan's powers.
Now you have people like jinbe crocodile and all ID to run away from Magellan without the slightest thought in their minds, we are x amount of people here, let's beat him up.
Again Magellan's df plays a huge role to his feats but shiryu was his equal with just a sword and in my point of view shiryu would consider more dangerous and a higher level fighter.
Now you tell me how can people shit on shiryu like: Zoro's opponent from Bbp will be just shiryu, when shiryu have more hype than every other crew member, even how him and BB meet and spoke about eachother separate him from the rest.
I mean, People can shit on Shiryu but if you want to be objective and shit on Shiryu, you must diarrhea the rest of the bbp

minus BB ofc .