At least until Conbase says your transaction was suspecious and voids your trade if the price moves against them.

Seriously, I think panics are a great time to arbitrage between exchanges, I'm just not sure coinbase is the best one to use.  Good luck all the same.

And yes, I do think this is an XT event.  It adds a lot of uncertainty and weakens the ecosystem, both good reasons to sell and not buy.