I'm also hopeful, but given the language barrier and the huge talent pool in CHN, I just have to think that this decision was based on performance. And if they're picking up Ado, it would also seem that they can sign Korean players for reasons other than being a prominent female. Good on them for making sure they both have another native tongue on the team, too.
But if worst comes to worst and the cynical scenario is true, at least she's a much better advertisement than, say, the controversial Quebecois. Either way, I'd like to see her prove herself and kick some ass, especially with Zarya on next stage's Kings Row.