True, that's a risk it will still share with pure PoW. But at least you don't have to worry about doublespends after your transaction has finalized.

Full Casper may have stronger liveness guarantees eventually, I'm not sure. At a minimum it's easier to manually intervene to get the network going again. (You could also do that in PoW by changing the hash algorithm, but you can probably only pull it off once, migrating from ASIC to general purpose hardware.)