It would be a struggle for you to find a female character in Game Of Thrones who didn't get her shoulders tricked out in Season 7. Not only did Daenerys start rocking shoulder pads, but Sansa gets a big fuzzy pair, and even Arya and Missandei eventually get some built-out shoulders. There's no logical reason for these characters to suddenly start dressing alike in such a bizarrely specific way, unless Instagram came to Westeros in Season 7 as well.
The designers obviously asked themselves what makes women look powerful, and couldn't think of any women more badass than Melanie Griffith and Sigourney Weaver in Working Girl. But seriously, Season 7 was so '80s that I was fully expecting to see an Oingo Boingo poster over Daenerys' bed when she was having sex with her nephew. Season 7 was so '80s that I know how they traveled around so quickly: Jon Snow has a DeLorean. Season 7 was so '80s that I'm fully expecting Cersei to name her baby Reaganomics. OK, I'm done. For now.