Reinbacher had 22 points in 46 games last year, this year he has 11 points in 35. This is a significant decline. Also -15 instead of +7.
Any way you look at it, his current season is worse than his previous season. That's not a good sign. And he's also ranked worse within his team in scoring than last season.
I also definitely do consider it a disappointment, as I do every time that a player of this age has a worse season than their previous one was.
Last season, Reinbacher could have been seen as a bit of a statwatcher-trap. I didn't really see any gameplay by him, and I wonder how many teams extensively scout NLA. Defensemen rarely get drafted from there in the first round.