It kind of amused me that the show conveniently forgot that Daario commands all of Dany's sellswords (after they merged the companies together) when they selected him to be her champion or at least assumed everyone watching would forget that.
I don't mind that they changed her champion, I just wish they would have had better justification. As it was, it felt like they expected everyone to forget that he is important because he commands a few thousand of her soldiers and is likely the main reason they're following her.
"Grey Worm, you cannot go, you are the General of my Unsullied."
"Ser Jorah, you cannot go, you are my oldest friend, adviser and your taste in hats cannot be matched. Also, you might command part of my army or something, I'm not sure."
"Ser Barristan, you cannot go, you also might command people in my army and are a valued adviser. Also, we can't let you do anything interesting or you might make an impression on non-readers."
"Daario, uh. I don't think you do anything other than flirt with me. Any objections from my advisers? ... What's that Ser Jorah, he's not important at all? Okay, go for it Daario, make me swoon!"