The "strong female thing" is undermined a little bit by the circumstances for each one though. Dany still needs Tyrion and Varys as advisors (with Barristan before that, not to mention 3 fucking dragons), and still has a soft spot for Ser Friendzone. Cersei needs Undead Mountain to enforce her will, and Qyburn to do all the rest of the dirty work (not to mention Jaime standing behind her, getting Riverrun back for them). Perhaps their intention was to make the Sand Snakes seem all strong females, but their depiction in the fight seen was horrific, and they just seem this separate entity that Varys essentially is like "ally with the person I'm advising, and we'll win". Yara still keeps Theon around, and needed him to support her claim to the Salt Throne...which she still lost to her uncle. Sansa still comes off as Littlefinger's protege, and it's not her that's the King of the North and super obvious chosen one...it's Jon.
About the only real female rocking bells all on her own is Lady Mormont.
