You'll learn that there are some fonts on this particular site that will never drop their strongly held convictions based upon very little info. It's like arguing with an atheist about the existence of God or vice versa. You'll never convince them. FFS, they think they know better than the coaches who attend and run practice. It's ok, they're still fans, learn to take it with a grain of salt.
I love the way your brother plays, he's undoubtedly a better back than Cot and it's going to show in 2020.