I don't think they are. I personally can't understand their criteria of choosing coins, they keep adding ICO tokens but don't list well established coins like Monero, for example.
Monero is planned. It s in their work road and. They have almost 10 more coins in beta right now. As for the exact criteria they are using to select coins, I don't know them
The team gets asked all the time about Monero on their Slack Channel ... basically, they can't figure out how to add Monero without requiring downloading a full node, or some such thing. I think Jaxx wallet is having the same problem. They are working directly with the Monero team to find a solution, though.