The world of comics is built on secrets - both inside and out. After all, a series without foreshadowing, red herrings, and all sorts of fun references generally isn't worth reading. Similarly, with the comics industry having so many internal arguments and disagreements, there's also a fair share that goes on behind the scenes that you never see - until it's brought up in a comic itself.
Even if it's blatantly in the middle of a page, often we still don't recognise either type of these reveals, because we're too focused on the next bout of action, or just because we don't get references to beefs between creators without already knowing their relationships.
As such, a writer or artist can straight up say they hate their job on a page, and many of us still wouldn't quite catch it. This is arguably why so many moments of "foreshadowing" in comics are so damn obvious - because the creators know the other stuff we've missed, and are worried we might also not recognise the hints they put about the story.
But this is arguably one of the most fun details about the medium, as fans are as capable of deciphering genuinely difficult comic puzzles as they are capable of missing something right in front of their eyes.