My take-away was that the waif is a nearly fully trained-up killer. She knows how to fight, full stop.

Wun Wun (/pedant) had the best line of the night… "Snow."

And then Arya jumped into a canal full of brown trout and The Seven know what else. Slow and painful death for anyone not named Arya Stark.

Huh? The waif kicked Arya's ass when Arya still had a bo-staff and the waif was unarmed.

The former High Septon did a Walk of Shame after he was found in Littlefinger's brothel. The WoS cuts across sexes.
Your other points remain valid.

Jaime looked amazing in Lannister armor!
I think it is the first time we have seen Jaime in anything other than Kingsguard regalia (or tied to a post covered in his own shit) since he was sporting the Lannister gold and red when Tywin was gutting that stag back in S1E07.

I was half expecting the Frey douchebag to cut Edmure's throat, and then the Blackfish to grab a crossbow from one of the soldiers at the battlements and shoot the Frey idiot in the eye.

She is Ned Stark's daughter, but come on!

DON'T TALK ABOUT THE BOOKS!
Oh… never mind.

Yup.
Olenna: (to Tyrion) I was told you were drunk, impertinent, and thoroughly debauched. You can imagine my disappointment at finding nothing but a browbeaten bookkeeper.

Loras looked like he would lose a Trial by Combat with Ser Pounce the last time we saw him, but Yara and Theon sailed around a continent and across a Sea in one episode, so time just passes differently on this show (SEE: Littlefinger, Teleportation Powers of).

Hound: "You stupid bitch — don't you know what show you're on?"

Lots of mentions of the moon…

The Long Bridge at Volantis was looking fine as well. So strange to see the Greyjoy Kracken sails getting furled in Volantis.

I'M DOING IT WRONG!

Gotcha. Thanks. I just assumed that Margaery and / or the Queen of Thorns would NEVER leave Loras in the hands of the High Sparrow, so I assumed that his release was part of the deal.

Braavosi live next to a complex dedicated to assassination for hire. Bleeding children come with the real estate.

Here come the Syrio Truthers…

I've found a puppy under a xmas tree, and I have never been happier to see a Hound than I was tonight.

I am naturally distrust of religious leaders, but I haven't gotten any 'hypocrite' vibes. HS wants to make a point about who the real power is in the 7K (the gods), but he seems to straight up believe.