So, I think most of the issues with this latest episode are a little nitpick-y... People complain when the show is going to slow. People complain when the show is moving too quickly. I think some GoT fans are spoiled. Having lived through the ups and downs of say... Lost... the "low points" of this show seem pretty high in comparison.
I don't think the complaints are a direct response to the show as much as they are a response to the overwhelming drum of popular claims that GoT is one of the greatest shows ever, the greatest show on television, comparable in quality to The Wire, etc...
GoT has for the most part, outside of last season and parts of season 5, been fine. It does, however, have several deep flaws, even at its best. As something of a self-proclaimed amateur Tv aficionado, I find it obnoxious seeing GoT receive all of this undue, undeserved praise while the likes of The Americans, The Leftovers, and even Twin Peaks go unwatched by almost everyone despite being demonstrably better programs. Comparisons to The Wire are absurd. It's absolutely triggering trying to find somebody to talk about the latest episode of Twin Peaks or The Americans with, while everybody else is busy superficially dissecting the largely superficial GoT, even though Twin Peaks and the Americans offer much deeper conversations with more potential avenues and permutations to explore.
Essentially, much of the nitpicking stems from the fact that for a supposed contender for "greatest show of all time," there's a lot of really bad writing and silly bullshit we have to deal with. People simply haven't sorted this out on a conscious level yet, so they nitpick constantly without ever realizing why. The expectations are sky high despite the fact that the show has consistently failed to deliver on them, and remain so due to popular momentum.
Once again, I think GoT is a fine show. Within its proper context as an upper-mid tier series, legendary in its own right for introducing us to certain now well known actors, having some extremely memorable and emotional moments, and opening society up to the idea that Fantasy can actually be a viable genre that reflects human nature and medieval history, as opposed to some literarily stunted sub-category of fiction where grown children hurl firebolts, read only by social outcasts and autists who are astute enough to read in their free time, but not smart enough to read actual literature.