>> Some distributors, at least, may well decide that they do not wish to
>> push that kind of change to their users. We will not see the answer to
>> that question for some months yet.
Actually, you won't have to wait that long for some. As long as data=writeback introduces a security hole by exposing other people's data on a crash, Fedora will not be shipping this way. Rawhide has already turned
on. Shipping any other default would be irresponsible.