You could write a similar, negatively slanted diatribe for literally every team.
Harper is an injury waiting to happen, Strasburg is losing velo, Jayson Werth has too much grey in his beard blah blah blah.
Stroman is short and his delivery has alot of effort, what is Sanchez's role, Jose and Edwin are pretty old, who is the ace? Reyes on turf was always a bad idea blah blah blah
You make mention of uncertainty when in reality a statistical model has a much better grasp on the concept than your intuition does. Uncertainty is the thing we humans are about the worst at estimating. Our system 2 doesn't have the machinery to do it and system 1 requires specific training to do it right. Given that you used this: "The Rays were projected for 86 wins going into 2014, and they finished with 77 wins." as some piece of evidence, I don't think you have that specific training.