I would agree, and I would add that people seem to be ignoring that BCH is extremely unstable right now. They've only mined ~18 blocks since inception two days ago (Normal is ~144/day), and the fact that a single Reddit post was capable of keeping miners for mining for a full 12 hours seems to indicate that the hashing power is hardly distributed. Even exchanges that are supporting BCH aren't allowing deposits or withdrawals right now for this reason.
So even if Coinbase did allow people to withdraw BCH, they currently couldn't use it for anything (Because Coinbase is not trading BCH), and they'd be waiting hours or more likely days to reach enough confirmations to have any sense of security over the coins. So doing something about it now vs. considering doing something about it in a couple days after the dust settles makes little difference.
So even if Coinbase did allow people to withdraw BCH, they currently couldn't use it for anything (Because Coinbase is not trading BCH), and they'd be waiting hours or more likely days to reach enough confirmations to have any sense of security over the coins. So doing something about it now vs. considering doing something about it in a couple days after the dust settles makes little difference.