I think it's a fine line to walk. Examining the films under a microscope is what has lead to some of Ady's incredible improvements, so it's hard for me to agree with any sentiment that implies people should just shut up and be happy with what they get. Such complacency is not in most of our DNA.
But there's a point of diminishing returns, like when you're analyzing and arguing over the same minute of footage for 2 weeks or rehashing year-old debates without bringing anything new to the discussion.
It's a fine line, but ultimately we're all here because we love this series and we love this project. Heated debate won't change that, so long as we all recognize when it's time to let it go.