Mm-hmm, that’s the sleaziest part, Blizzard shamelessly using an actual charity to try to mask their true intentions for future monetising, because they knew they couldn’t just come out and do it this way first.
Given their behaviour, I’d almost be tempted to ask if there’s any proof that Blizzard ever even passed on the money they received for the Mercy skin at all, but I don’t think they’ve fallen quite that far yet.