The only argument for Glass at this point is that, since he gets the least amount of ice time on the team, him being the worst player in the entire NHL isn't really a problem.
To willfully deny the negative impact he has on his line mates, and the 4th line in general, is borderline trolling at this point.
Contenders in this league have a 4th line that eats minutes against tough competition and takes heavy defensive zone starts. You know, the kind of 4th line the Rangers used to have before Glass came along.
I mean, it's statistically proven that he is one of the worst, if not the worst, player in the NHL that receives regular ice time. He has a massively negative impact on goal and shot metrics, so much so that you can't call it an aberration.