Not really. Guy is being way too nitpicky and is missing the point of a lot of scenes.
1. He goes at length about why Dany didn't meat Ellaria and the others in Dorne instead of the other way around even though the series has explained at length about customs and how one is to treat their superiors. If Dany is to be respected, they would come to her, not the other way around. It isn't about strategy, it's about respect. It's the same reason Jon doesn't send an emissary to meet with Dany instead, she's a Queen, you come personally to her.
2. His complaint about Sansa publicly undermining Jon is also a thing explained by the show. Jon challenges her directly about it and she explains that it's because she thinks if they don't get through to him, they're all going to die. The Stark men have been making bonehead decision after decision throughout the run of the show with no one able to convince them otherwise on their own. She wants the group to pressure Jon into not making what she views stupid calls all the time. Sure it hurts Jon's standing with the group, but she honestly believes he'd die if he does things his way, and she has good reason to believe this based on what she's been through.
3. The Cersei giant crossbow complaint is a pure nitpick. "It totally should have been invented by now!" is massive reaching and I think we all know it.
4. Dany being arrogant comes out of nowhere? Have we been watching the same show? We've watched this woman get hyped to high heaven all throughout the series, and we've seen glimpses of her brutality throughout the show. She burned a woman alive in season 1 and promised she would scream! This is that same character, but with years of near constant praise and success behind her back. The idea that she wouldn't become more and more corrupted as she got closer to her goal is a dumb one.
5. The entire premise that Euron capturing Ellaria/Yara isn't a consequence of an action is flawed to me. It seems to be a total refutation of Tyrion's strategy of dividing and conquering instead of showing ones full might all at once. He's playing it cool with Cersei and it's going to bite him and his allies in the ass. I don't buy that "every bad thing that happens to someone has to somehow be their own fault" theory this article pushes, but it's clear this crushing loss is Tyrion's fault. I doubt his assault on Casterly rock will fair much better. The solution later on will be the same one proposed by their allies from the start: Dragons.
I do somewhat agree with him on a couple of points. The question of how the hell Euron knew where they were for one. The only options are that he was heading to Dorne anyways and just happened to intercept them (which is a contrivance, but the show's done worse), or that he was tipped off by someone in Yara's crew (which seems even more likely to me, but we'll see next episode).
The other point I kind of see is the old "Why didn't Sansa tell Jon about the Knights of Vale?" point. My theory is that she didn't know for sure if they'd come and wanted Jon and the team to fight without expecting a cavalry that might not arrive. Even then though, she could have said "the Knights of Vale might show up, but don't expect them to show up 100%". A bad call by Sansa IMO, but not the show shattering plothole a lot of people think it is.
This article starts off with criticism on the books and ends with a statement saying he'd trade those flaws for the show's flaws any day. I'm of the opposite camp, but I can't exactly explain why here.
