Bitcoin Cash would only be a failure if there was a doublespend, therefore it is a success.

Coinbase will no doubt be sued for not giving out their Bitcoin Cash and the Banana Cash to all Bitcoin holders (Banana Cash was a Bitcoin clone launched a week ago with double the block size of Bitcoin Cash).  Banana Cash will be waiting for a couple years for the hash rate to catch up (still waiting for the miner to mine the first block).  

Coinbase should be sued for every Bitcoin air drop that they did not honor over the past 3 years (of course there were more than one).

It should be against the law for an exchange to not comply with an airdrop, and the penalties should be very severe.

When the Bitcoin Cash hash rate finally comes down allowing us to dump our Bitcoin Cash on the open market, the Bitcoin Cash Foundation will release  press release of the good news (good for adioption) that will make us want to hold it to pay our federal/state/and local taxes with more ease.

The Bitcoin Cash development team is waaaaay more smarter than the Bitcoin Classic devs.