I think there is a difference between walking out of Total Recall and wondering “Was Quiad labotomized or was he really a spy?!” and the myriad of questions after EG “How Gamora? Who Gamora? Why Gamora?”.
Simple questions, or fun questions around interpretation of events is (to your point) can be some good story telling techniques. But in this case it is clearly sign of bad writing and the use of plot devices and hand waving to tie it all up in a nice neat little bow. “Oh well how did that character do this in the end?..Answer: Don’t worry about it, it just worked out fine that way. Move along.”
That’s never ok.