Technically, since recent transactions are all listed in public, coinmarketcap could possibly get info from there. But that's gunna be a hassle and with an exchange with only 1200 BTC worth of volume daily, it's probably not worth it.
That's the thing, CoinMarketCap actually list specific data such as markets volumes and If those are not provided by ShapeShift then there is nothing to list, this has nothing to do with them not wanting to list it.
Technically, since recent transactions are all listed in public, coinmarketcap could possibly get info from there. But that's gunna be a hassle and with an exchange with only 1200 BTC worth of volume daily, it's probably not worth it.
The data are clearly visible for them but simply not available for public. If they don't even know how much volume they have an d how much they are earning, how are they going to progress as a business? and this is unrelated with the fact that they there no accounts, deposits etc.