Meh, Monahan in his last few seasons as a Flame was a horribly selfish player who refused to sit out so he could heal properly. Instead, he repeatedly played through fairly severe injuries despite being a liability making the team worse and hurt his value as an asset.
Of course, didn't help that the Flames were run by absolute idiots in Treliving and Dutter who seemed to encourage this kind of behavior.
Glad he's healthy and player well again, but this resurgence was never going to happen in Calgary given their gross inability to see the bigger picture.