There is nothing to "acquire" - the private keys are the same, they and they alone already have control over the funds.
"Wait and see" is usually a reasonable stance for companies to take, but in the case of securities splitting in two, withholding the new securities until their value changes - potentially even keeping them yourself - really shows your hand.
Among other things, this split has thrown into relief the stances various exchanges take with regard to their clients, and anyone researching which exchange to use should take a good hard look at moves like this when considering who to invest with.
It simply says, not supporting BCC now, but might in the future -- we will not acquire the BCCs for Coinbase.