Wow, this is actually the hardest blow Oda has ever given to Shanks fandom, even more so than giving him the lowest Bounty among Yonko.
Not only he confirms Shanks is indeed a swordsman, making him 2nd strongest, but he also debunks the theory that Shanks 10 men crew = Yonko Fleet.
He DOES have a fleet system guys. Moreover, his crew follows the same structure as the other Yonko with commanders and veterans. So much for having a small crew of Yonko Commander level fighters.
To make matters worse, the info is revealed to us via SBS. Taking both relevance and hype from the crew. I actually felt the blow