Hey, let's selectively oversimplify a complex character. I could do the same for the oh-so-loved characters like Tyrion from all of ASOIAF.
Bitch about Tywin
Bitch about Cersei
Fuck bitches
Bitch about being a midget
Bitch about no one loving you
Bitch, bitch, bitch bitch bitch.
Hey, isn't Tyrion such a sucky character?
Sure the teenage love stuff is a bit of a bore to read in Dany's chapters, but that's only one subplot of Dany and it's not like characters like Jon & Tyrion have been free of that kind of not-that-well-written woman-enters-the-picture chapters (that's actually 90% of ASOS for Jon). Figuring out who to trust (if anyone), trying to rule Meereen, the premonition lady paying a visit, fighting the shadow war against the Sons of the Harpy, trying to stop war with the other Free Cities, the wedding, the fight pit chapter. Plenty of interesting things happening in her chapters, despite things not going the way Dany would want them to go for the large part. I see Meereen as a necessary but not the easiest to read way of building her character. Sure, there's not that much action going on, but she has a lot of hard decisions to make and almost everyone working against her.