I remember when Magic Johnson announced he was HIV+, I couldn't decide if it would be better for the country in general and the sports culture especially, at that time, if he also announced he was gay. On the one hand, having a major sports star come out would have been massive for the gay community (I don't think anyone used the term LGBTQ back then), but on the down side, it might have cemented the general consensus among such a huge portion of the population, that HIV/AIDS was a disease for gay men. The reality of course, didn't further the gay culture in that way, but it did likely help the larger public health issue by demonstrating that HIV/AIDS could happen to anyone -- and maybe that saved a lot of lives.
I'm very impressed by Nassib, as many others here have pointed out, mainly for being brave enough to come out, but also for the matter of fact way he did it.
That said, he's still not a major STAR or a household name. There have been many unfortunate rumors and innuendoes about players and their possible sexual preferences, which suck, but I am still looking for the day when a player comes out who is known more widely than a mid-range defensive lineman from a mediocre team.
And further down the road, as Nassib stated nicely, it will be an even bigger day when someone, anyone, in any walk of life, comes out and it simply doesn't matter.