That's the one area you don't have to worry about with the Sox. Stone, Ozzie, Gordon, Podz, Our Chuck, Frank (some more than others) have all been openly critical. Far more than any other team's broadcast team's. They aren't the Orioles.
Don't forget Shaw with 130 appearances.
(Seriously I actually hope they bring him back. Much needed leader in the pen. Imagine Kopech crying about pitching too much in front of him)
He's at 2.5 fwar and 2.1 bwar. His numbers have gotten better since he got to Miami. As someone already said, the numbers are on his side. They certainly aren't on Jake Eder's. Simple as.
You cannot trade a 2.5-3.0 WAR player for a single minor league pitcher. The bust rate is way too high for that. We quite literally picked up pitchers off the scrap heap that were better prospects at one point than Eder will ever be. Eder could be a rule 5 victim by this time next year.
I've seen him out on a few occasions and have seen friends video of it as well. I've never seen this for another player, personally. He's certainly got a reputation.