Timani is in the squad because he's that 'what you see is what you get' guy. He's an out and out vet, he's got over 150 Club Caps and has played a few tests. He's a 'plug and play' guy, you know what you are going to get, he won't do anything that surprises you -- either way he won't do anything special and he won't do anything too dumb (well we say that and yet we had Rob Simmons so...).
My 2c is plugging in Hodge at 13 with Hunter. While Hodge is our 'plug and play' guy in the backline for this year, I suspect/expect looking forward to the RWC we'll have shifted O'Connor into that utility role as he does have significant experience playing pretty much anywhere in the backline bar halfback. So I hope we see Hodge finally get a position with the Rebels. IMO 15 would be his best position, and looking at the Rebels squad that might be where he'll be most needed and he'd be a quality World Cup Fullback and has somewhat fulled that role having played that second fullback from the wing for the Wallabies.
Would have loved to have seen Godwin been another 'plug and play' guy filling that hole at center. Obviously not a guy you have a long term future for, but he fills a temporary need and you largely know what you are going to get until you get back some of the other centers.
On the squad I'm still shocked Sio was included, he's done nothing in the past 1.5 years to justify Wallabies selection, and I'd have preferred probably Tom Robinson in the squad instead of him, perhaps Feao Fotuaika would have been worth a look (big Cabous isn't eligible yet IIRC, but could be another option).
Also I'm a little bit shocked how many people were defending To'omua suggesting he should start, but also I'm shocked how few people were too. Most people defending To'omua were defending him on the basis of past performance and I expected more of that, but it looked to me that most agreed To'omua probably doesn't justify a starting spot on the basis of his performance this year. I really don't think you have space for To'omua and Hodge in the same 23, especially when you've got James (anywhere but 9) O'Connor starting. I'd be tempted to have Lolesio on the bench knowing you can shift O'Connor to -- anywhere and be able to ease Lol'o into test footy a little more nicely than throwing him in the deep end against New Zealand.