You can't really call yourself an Athlete by playing an e-sport, since it's not Athletics.
You're a sportsman, sure.
I don't really see any problem with this.
Calling LoL a sport doesn't exactly make other things, like Basketball or Running any less of a sport.
And at the very least, it allows you to be properly identified as a professional player, being someone who is sponsored or plays the game as part of a vocation.
And the US Visa system is quite bizarre at times.
My brother is currently teaching Kayaking at an American Summer Camp, and he had to jump through an unbelievable number of hoops to get his Visa, which I think is weirdly specific to the reason for his visit.
If this speeds it up for internationals wanting to enter tournaments in the US, then it's only good.
I've no doubt that those sort of tournaments do bring in some decent amount of money to the country/state they're in.