The jam with revealing characters as LGBT+ in media is that it in all likelihood really isn't gonna seem like a big deal, or it'll seem like a big deal over a minor thing, to you if you aren't part of that demographic. But to someone who is? It's really nice and touching to have characters to relate to on that particular note. And while I can't personally relate to Tracer herself what with me not being a lesbian lady, it both makes me happy that my friends who are have a character that they can say does canonically share that aspect of themself, and also gives me hope that more character's that I specifically can relate to will be written in the future.
I think the reveal itself in the comic was p well handled as far as this sorta thing goes, Tracer's actual personality as a bit of a friendly but hyperactive mess was front and center the whole time.
And as Bumscags said, the ideal would be to have it just be a normal thing without NEEDING to be a Big Cool Fancy Reveal. But shit's not ideal.
I really like the various omnics in various human clothes
Makes me want a formal wear Zenyatta skin