Just got back from the dealer. Props to the dealer, they brought me back to the lift for the initial inspection...I even helped push it in from where the tow truck dropped it off and they brought over their two most senior techs to investigate. We checked ATF dipstick (not CVT model) before the lift and it showed fluid in it, but slightly low....for obvious reasons as we'll see next. Once on the lift, we drained the front diff and surprise..... out popped ATF.....along with a LOT of broken metal parts. We collected some fluid and It did not appear to any of us that there was any diff oil in the mixture. The hypothesis by the senior techs is that the assigned tech and his apprentice probably got crossed up along the way and forgot/overlooked refilling the front diff after draining it....(idosubaru called it!) and the front diff disentigrated in short order and the pieces punctured some wall (I'm not familiar with the arrangement of the sumps/paths etc).......punctured some wall that allowed ATF to flow into the diff, which of course we observed when we drained the front diff.
Either/or, the service manager (after private consult with the senior techs) graciously shook my hand and said, "we got this...this is on us". I've made my share of mistakes and understand how things roll.....despite the inconvenience, but most importantly, I can't say enough about the transparency and integrity of this Subaru dealership and their service staff.
-tkyler