Why would it need to be forked? Couldn't the smart contract language just be upgraded for better security then deprecate DAPPs using the old language?

If they don't fork, everyone affected by this will lose all of their ETH.

Many would argue the correct thing to do is to not fork and say that people knew the risks beforehand, etc. But that's what people said last time and they still forked, with no (apparent) severe consequences other than complaining about integrity. Two forks may be harder to justify.

Ah that makes more sense. I was thinking he was saying they would have to fork for a technical reason not political.

They'll fork it to unfreeze millions of funds.

It's just funny how decentralized currency is so easily swayed by a few individuals to serve their purpose.

they need to have a majority of mining power moving to the new fork for it to work though...

It will be forked because they have history of forking when people "lose" funds.

They have a history of doing this once, and also a history of not doing it in at least another high-profile case.