I don't think it's Lions exclusive, though the Lions do have more surprise retirements than most NFL teams.
Jake Plummer got into a long, drawn out dispute with the Bucs over his bonus, which the Bucs effectively won. The Patriots refused to pay Antonio Brown a signing bonus even though they had no legal right to withhold it. This year, Drew Dalman retired from the Bears and is subject to return a portion of his $6MM signing bonus.
What I don't get is why Rod Wood made it a story. The reverse is always going to be more well known, because Irsay in Indy looks like a good guy billionaire for not clawing back Andrew Luck's signing bonus. (When in fact, it might be just as likely that he realized it was better to keep Luck in his good graces in case he unretired). Likewise, Benson in NOLA looks like such a nice owner when it's published that Carr was allowed to keep his money. (When in fact, it looks likely it was negotiated to avoid Carr medically retiring and creating a messy drawn out arbitration over both the signing bonus and his fully guaranteed money). In both of those cases the team wasn't very good anyway, and wasn't seriously injured by not getting the cap relief. Whereas the Lions needed (or at least wanted) the cap relief.
So why would Wood make a story out of the reverse, painting Sheila to be greedy, or at least justifying what the public will perceive as greed? I don't get it. I seriously doubt the Bears will make a public comment on whether they are clawing back Dalman's money, especially if they are. Because there is no benefit.