I do, too. It looks better afterwards, and the ring certainly helped, although CK looked bad in the 2019 playoffs.
I loved having Kimbrel. We won a ring. It's hard to say the trade was a failure, and I'm not saying that.
I'm okay with overpays. The Sale trade was an overpay. The Thornburg trade as well, but it wasn't a gross overpay, although the Thornburg one looks bad, now. It's like the Price signing. We all knew we paid too much and/or for too long, but we needed an ace, and he was one of the top 3 aces to enter free agents in a pretty long window. Overpay? Yes. Still a plus signing? I think, yes. (It's looking worse now than at the time, and that's scary with so many years left.)