I've just ran stabilizer duo twice (before and after reset, it's 11AM in my place) and that's what I got every time in addition to my normal 6 fragments. I've also checked it on free account, they get some bonus fragments as well.
I ran the Stabilizer duo after the 2AM reset (I'm on Mountain time) and I didn't see any reward window. It was the same as any other day.
Decent chance of it. IGN had a video up yesterday of the Shazam fight running on the Switch (fun bit, the POV player name was NerdofPrey3 LOL). Wouldn't surprise me too much if a dev or two plus our community manager made the trip to help promote the game at the show.
Guess I really need to get out of the habit of running things before server reset. They should make that and loot locks reset at the same time.