Word from on high is that people traveling so fast is a misperception because we're seeing events that take place at different times concurrently within the show, but actually occur at very different times chronologically.
Not to put too fine a point on it, I think word from on high is totally full of
shit at this point.
At best, they totally brought the confusion/frustration down on themselves to have Varys travel half-way around the world and back within the course of a single episode, at the same time going through events in King's Landing that apparently took maybe a week(?). That, right there, is
crap storytelling on a very basic level.
More likely, to my mind, they've gotten so determined to have everyone where they need to be to play out their unlikely, melodramatic confrontations at regular intervals, they've forgotten the idea that there might need to
be something resembling a coherent and credible chronological order to events at all. How far did Brienne travel, and how much did she do, between her meetings with Jaime? How far did Arya travel, and how much did she do (having also met up with Brienne at a particular point) within the same amount of time?
Forgive me if I overstate the point- a Facebook acquaintance of mine is being particularly credulous and obnoxious in taking the producer's line on this one.
There was some glorious spectacle in the last episode, sure... But the only thing that really resounded with me was Daenerys making Tyrion her Hand. Tyrion has been overdue for some respect for a while.
I also feel a certain need to point out that Cersei was responsible for the High Sparrow and his zealots taking over King's Landing in the first place. Now, having blown up half the city, overthrown what seemed a pretty popular regime, and destroyed Westeros' standing with its creditors, she gets to be queen (speaking of "I think we may have skipped over a few things on the way to getting here.") Um, yay?