Players are traded all the time. That isn't screwing the player. The Lions were willing to give up a first round pick for Gronk where he looked to be towards the end of his career. The Pats were given an attractive offer for a player who they felt was on a decline. You can't blame them for that. The Patriots were not punishing Gronk by sending him to Detroit. It was Detroit who were dumb enough to offer a first round pick for a HOF TE who was down side of his career, 29 years old, and the injuries were mounting up.
I don't get where people think teams are obligated to keep HOF players on the team until they want to leave. Most HOF players don't finish their careers on the teams they earned their HOF status on. That is life in the NFL. The Pats had no obligation to keep Gronk on the roster.
And this life in the NFL. This isn't the real world. Players know the deal. They are treated like gods and have tens of millions of dollars thrown at them until they outlive their need for the team or become too expensive for their production and then they are likely to be thrown out like yesterday's garbage. That is the system Gronk signed up for when he entered the NFL. If he cannot handle that, then it is on him and not the Patriots.
The fact is. For most of Gronk's career with the Patriots, he was given unprecedented special treatment. You could argue they bent over backwards to appease Gronk and his family more than they even did for Brady. They allowed Gronk and his father to dictate when he was ready to play even after when he was probably medically cleared to play. Heck, the fact they let Gronk's father even involved in the process at all was unprecedented special treatment.
I am not going to pile on Gronk for his statements because I really don't care, but let's not recreate history to make the Pats look evil and Gronk a victim. He may feel that way, but that isn't the truth.