You are correct that majority do not try to see her side of the story, but it's important to also take into account that lots of players do not want to see it precisely because Larian never bothered to flesh it out and improve it.
But that is not the issue nor is truly relevant; the issue is that she does not have any love/romance scene after she is truly free and fully herself in ACT II. That's the real problem, the fact that Larian did not make any for the actual Minthara.
These two things in combination constitute my biggest problem with her treatment. In Early Access the devs really stressed that they wanted people doing the evil stuff so they could get data on that, so I did! And Minthara's dialogue AFTER the ethical quandary of her sex scene actually has some of her most interesting, most in-depth writing. You get insight into her fears and hopes and even if you offend her and lose the opportunity to recruit her by looking into those fears you get GREAT content out of it. You get some early insight into her matriarchal upbringing and a nice little mention of Menzoberranzan and how she'd love to take you as her consort there, you get reactivity when you save her later (unfortunately though as you've shown this path has far more broken than working). With a start that strong it was exciting to see where they'd take her. But they left her pretty barebones so that's like... ALL you get out of recruiting her the original way to balance out everything you lose and it's just nowhere near enough. Then you fast forward to her new recruitment method and while that's great and in a world where they won't hunker down and fix all her bugs it's nice that more things work on this path they still left things broken and you instead just lose all that early intrigue she gives you. Damn shame.
It's wild that they left her in such a bizarrely broken state, and I can only imagine it's mostly for Halsin's sake. Sure he needed Act 3 content when they decided to make him recruitable but as time has gone by I've just become more and more convinced that they basically forgot she existed and ALSO needed to be worked on between EA and launch when they shifted their effort to Halsin. It's the only reasonable explanation I can think of for why there are SO many problems with her and why new bugs with her appear with every update that tries to fix any of her problems. It feels even more odd because before the game launched they seemed ENTHUSIASTIC about her and the evil path content.