Thank you for the hard work that you all do!
See, my thoughts are when you run into a curfewed airport on the last scheduled sector of the day, the onus then is on the poor ground crew and cabin crew who now have to try to manage turning the plane around in a less than realistic timeframe, which was what happened yesterday. That is barring all the other stuff that may happen that falls outside of their control (e.g. engineering issues that pop up, flow control).
So at the end of the day, yes the cabin crew on my flight looked tired and flustered but they still cared enough to offer us multiple top-ups of beverages, and brought us a very nicely laid out pantry tray full of snacks for us to take with us. Your management are really lucky to have staff like that and I hope they realise it before it's too late! I will definitely be dropping them a note to let them know about this ridiculous situation although I'm convinced they wouldn't care since I have no status with them.