I thought the same thing too. But I don't think he'd ever do that kind of publicity for himself.
There's some kind of dumb mp3 player in the homepage where the unicorn talks. And it doesn't sound at all like Roger's voice. And he's not silly like that.
I think the team might just be using the name Roger to seep in that subtle notion that Roger Ver may be behind Litecoin Cash lol.
Someone should do that for Vitalik. Just have some random Russian dude whose name happens to be Vitalik, join their coin's team with a furry pic and no last name. Just Vitalik
. People would hype.