Yeah, Dany chapters have always been boring--people just didn't realize it because every once in a while, one of her chapters will have an "holy shit that was fucking awesome" moment and will make you think it was worthwhile reading it. Like when her dragons were born and ended GoT with an epic final line, after feeling like shit when Ned died, it was really memorable. Or anything Drogo did. Or when Strong Belwas took a shit on that guy? You know, really fucking awesome moments that made up for the teenage angst and general uselessness of the chapters.
The problem is, the moment she stopped and stabilized in one place, the epic culminations of her character were replaced with dry, political machinations. I know the whole book is full of thesebutwhen you have political maneuvering in the 7 kingdoms, even if the dialogue/movement is just as dry, you actually fucking care--because it strikes you that what the Lannisters are doing will Kill some Starks or just how many people Little-finger has betrayed--and youknowall these characters intimately, so the consequence of all this matters. However, When Cocksos tosses on a goat's mask, and teams up with 2 people in bird masks to go kill fuckingguywe'veneverheardof it's justboring. There is absolutely no consequence for the reader EXCEPT the consequence Martin explains in a bit of exposition.
And that's the trap he's falling into, the classic "Telling, not *showing*". When Tywin's plot to kill Rob is revealed, he doesn't NEED to explain why that's huge. We KNOW because we've seen all the happenings around those characters. But when Camel-Mask guy killed some Slave-Leader idiot, Martin needs to stop and say "And with him dead, X,Y,Z,will happen! And that will be good or bad!" A good story doesn't evenneedto tell you consequence, it's should be a pretty visceral, organic thing that just happens. Now a story can EXPLAIN the whole arcane plan, like Martin did with Tywin's Red Wedding, but we already knew the whole of the effects of Tywin's plan before we saw the detail of it, Martin didn't need to stop and explain why it was important for Tywin to do what he did, or how it impacted everyone.
And that's why Dany's chapters blow. Because no one she kills matters. It's just some fucking name, that was said to be important by another person who we don't care about. The sooner she gets back to the 7 kingdoms and starts killing people there, the better.