If you can't export your private key in a click of a button then Its useless I'd say also a lot of people are using the ERC20 tokens and not ethereum itself so again, they will be losing a lot of users If they are not supporting that, I say Myetherwallet is still a better alternative for the moment.
I am not sure about their etherum wallet, however their bitcoin wallet is recoverable via their seed, and users can export their xprivkey and private keys via a java console -- I would presume their ETH wallets are at least somewhat similar.
A so called Bitcoin evangelist company is now offering Etherum solution. What a crime.
They are trying to adapt to the marketplace. There is no reason why they should support Bitcoin only when there is a major market demand for other coins.