Steve O'Keefe, yes, good call. I'm with you. There was an article too on cricinfo about how similar to Herath he is in action. I think SOK will go very well in Asian conditions. It's a great time to get him into the XI, with Watson/Marsh able to be a 3rd and/or 4th seamer, and a couple of good quicks injured. His batting is good too so that means M.Marsh and SOK as your 6 and 8 would be just as strong batting wise as picking Starc + a specialist batsman (Doolan/Hughes). That gives the selectors more options.
Maxwell...he'll get good experience I suppose, but honestly, I wish they'd leave him at home. It's just an unnecessary roll of the dice. All his presence will do is worry Lyon, O'Keefe, Marsh and probably Watson too that they might get hooked at any second. The other thing with Maxwell is that I'm pretty sure Rod Marsh said they wouldn't play 2 off-spinners together. So if they pick Maxwell, they are dropping Lyon. Shoot me now. They already did that in India last year, didn't turn out well... Maxwell is a talented guy, no doubt. He'll play some good Test cricket one day, but he's got to make the team on merit first, and second he shouldn't be forcing Lyon out just because they spin the ball the same way.
Abbott is an interesting pick. That article mentioned his 50 over numbers in state cricket. But since that tournament happened at the very beginning of last domestic summer, those stats are 12 months old! More relevant would be that he took plenty of wickets in the A team 50 over tournament a couple of months ago.
I like the Finch call to captain, just because he won't be playing Test cricket. Playing all 3 forms fatigues the mind and body, so I like a white ball specialist to get it and give the Test guys a mental rest.
I think Haddin was named for all 3 formats simply to save another keeper travelling over and disrupting their domestic season. If Wade got picked for 1 T20I then he'd have to take a week out for Victoria, and miss about 3 50 over games. Not worth it, especially when the keeper will just be shoved down the order in that T20I.