Season 2 was great television, and I personally didn't mind episode 7. I think most people hated that it broke up the suspense, but I don't think it's that big a problem for a binge watch show. If it was a weekly show I'd probably be incensed, but in this case it added some much needed background fleshing out. Because I think that was the major problem with the season. We get introduced to the mind flayer and the demodogs, but outside of there being new monsters du jour to battle with, the season largely felt like it was treading ground, and we ended up more or less where we started. In that sense I actually appreciated episode 7 for extending the mythos. It also leaned more into the horror elements, and had less of the Spielberg/Goonies flavor of the first season. Season 3 course corrected this, but because of this had its own detractors. I think between seasons 1, 3 and 4 though it's clear that this is what the series is trying to be.