Nobody ever called DL clueless for trading Fasching. They (including myself) rightfully bemoaned the trade as Fasching encompassed all the qualities DL loved, especially character. Especially with the net return of the trade being Brayden McNabb (a prospect at the time) + 2 seconds, none of which made the team substantially better as they were going for a cup run.
Faber, again, is a 19 year-old who played for Team USA in the Olympics. He has shown his ability to move up in responsibility and step up at every level, each within about a week or two.
Nobody's getting riled up, either. There are just a few who see issues with the trade and would like to point out flaws and aren't completely on board with it. There used to be a time when evaluating points and having discussions would be seen as that, and not "bitching" or "getting riled up".
On top of Faber, though, there was the first round pick. The Kings are low on quality LHD and goalies. There were quality players the Kings could have taken (including my favorite, Owen Pickering, who is scoring at a point-per-game pace in the WHL as a defenseman). Or be traded later for a more refined LHD. But now, two valuable assets to fill in gaps in the organization are gone.
It's a great trade from a raw value perspective. But with additional context, organization needs and current position, it is more flawed.