“assuming no additional risks emerge during that time...We’ll make a determination at a later date about adding trading support”
They do not have a plan to add it to the trading platform, which is the only thing that would drive any real value to the Bitcoin Cash market. The only reason they added it at all is to allow people to take their coin and sell it on another exchange, to avoid lawsuits.
If they had any plan to add it to add it to the exchange. It would make much more sense to release it at the same time, thereby profiting off of the trading fees
https://blog.coinbase.com/update-on-bitcoin-cash-8a67a7e8dbd...