Not only is it not laughable, it's the process that the teams go through, and not just in football. A player is released and the other teams take a look at him to see if he might fit their situation and needs. They then proceed from there. Obviously not all players fit all teams but, also obviously, there are going to be differences of opinions about some players.
In the case of Bentley, for example, some will point to his being out of football for 2 seasons. Others will point to the risk of signing him off of the injury. However, there will be those who point to his play prior to injury.
It's simple evaluation. In any large enough group, you will have some divergence of opinion. Perillo can laugh all he wants.