I think it was visibly clear that he ran out of steam around the new year, but I think that's normal for a young player new to the league. It was true for Guendouzi too.
However while the latter has been given another chance at the start of this season, Torreira is being written off because he's not playing well in the No.10 role in a team where virtually everyone is under performing or looking lost.
You guys may well be right, I just think it's very premature.