Specifically for representation, subtlety generally goes wrong. For an example; Watch Dogs 2 spoilers. Take Miranda in Watch Dogs 2 for example. She’s a trans woman, and it’s not really ever stated too blatantly. It’s actually surprisingly subtle enough that a few people I’ve talked to didn’t even realize she was a trans woman. Sidenote: At the same time, her entire arc is about being blackmailed by her trans identity; which is less-than-perfect. So if it’s too subtle, is it really representation? At a certain point it just becomes queerbaiting and that’s even more frustrating than no representation at all, in my opinion.
I think subtlety is important, but it needs to be a little more spelled out no matter what. It shouldn’t fly under every single person’s radar, but it also shouldn’t be too obvious that it feels pandering or baiting. It’s a real difficult line to toe. On one side you have blatant queer baiting with far too many anime, and the other you have representative characters that their only purpose is to be queer, or a POC, or whatever else.
Will they/won’t they has been a staple for years in media, and it does have its place. But representation needs to be in your face a lot of the times, and while I haven’t seen The Legend of Korra but I have heard good things from other queer folk, so I’m willing to follow their lead and be hopeful for more explicit queer relationships.
So in summation; it’s real tough but I’d fall on the line that there needs to be more explicit relationships shown.