If you want to know a player's chance of making the Opening Day roster, the first thing you need to do is to ignore the general positive statements that are best summarized, "He's one of our employees. We're not going to publicly say something bad about him." As well it should be.
However, teams find creative ways to balance professional courtesy with transparency, knowing that fans' interest in the team relates partly to their ability to gain snippets of actual insight from their beat reporters and other media.
Remember that the Opening Day roster does not actually have the importance fans usually ascribe to it.