I think this needs to happen for Fabbro's own sake. I understand he has his family ties and likes being in Nashville, but it's killing his career. I have no idea what issue the coaching staff or management have with him, we watch him and it looks to me like he's objectively a better hockey player than any of Lauzon, Carrier, and certainly Schenn. But he's the first guy to get his minutes slashed, or again now sent to the pressbox. It's just time for him to move on. The Preds finally got a win with Del Gaizo in the lineup, so there's no chance Fabbro is getting back in anytime soon, even though he's a better player and better lineup fit in terms of handedness.
I can't figure out what it is. Maybe something about his personality or off-ice work habits, there's just something about Fabbro which hasn't meshed with successive head coaches now. Or maybe there's just some grudge about him "not paying his dues in the minors" like other players have had to? It's definitely not about his play on the ice. He should be at least #4 on the Preds depth chart. I would argue for #3, but it's at least debatable between him and Carrier, although I personally like Fabbro better.
He'll be a UFA after this season, but he really needs to go somewhere else and play and prove his worth even before that. If the Preds are willing to use Del Gaizo ahead of him, then they'll be just as well off using Stastney if he comes back, or calling up Blankenburg, etc. There's not even depth/spare value to holding onto Fabbro now, if they're simply not going to play him and value minor leaguers ahead of him. Trading him for a 7th round pick or just putting him on waivers would be a kindness which I would support as a Preds fan.