Huh? Where are you getting the 2:1 option from, or indeed, the notion of MR to Atmos in Australia? Alaska Airlines yoinked Hawaiian out of the Membership Rewards program internationally as Alaska has its own preferred banking partnership, and it's not with AMEX. There was the loophole for a while to convert from MR to Hawaiian and onto Alaska, but that's closed. Expecting Atmos to become available, or that it'd be 2:1 unlike the other international partners, is a bit of a daydream, unfortunately. I'd be happy to be proven wrong, of course, but...