Agreed that she probably isn't the best poster child.
(the below is US-specific)
That said, sometimes in civil rights movements, you get the person you get, not the person you want, in the legal challenge. Miranda (of Miranda Rights fame) comes to mind - he still was found guilty, even with his confession thrown out, of raping a 17 year old girl after kidnapping her. Pretty disgusting specimen of humanity, yet also the disgusting specimen that created our Miranda Rights (ironically, when Miranda was murdered after being released from prison, the primary suspect refused to testify, citing his Miranda rights; He never faced trial for the murder). Virginia's sodomy law got thrown out in a case involving basically a child molester (not legally, but practically; VA doesn't consider an adult having sex with a consenting 15 year old to be child molestation, and rather than fixing THAT problem, they chose to defend the sodomy law that prohibits consensual oral and anal sex between same and opposite-sex couples). The case that threw out everyone else's sodomy law was Lawrence v. Texas and involved basically three drunk and rowdy gay guys in a love trial that provoked enough anger in the third member of the triangle that the third member called the cops to report "a black guy with a gun" (the reason police entered in the first place). Not the image HRC probably was going for of two upper-middle-class (probably white, probably men) guys demonstrating love and commitment over their lifetime! Several other people who ended up getting the rest of us huge victories in court were similarly not the nice, presentable specimens that civil rights lawyers probably wanted.
There's also the distinction between throwing someone under the bus intentionally (victim blaming) vs. simply using more presentable victims to fight bad law. But I would hope that if she challenged the law that she would get the support of the community since the underlying legal issue is relevant.