Taking off my moderator hat and on the topic of the thread, I'm in favour of fixing bugs in general including in the romances. I am more interested, though, in whether the romances make good subplots to our characters' stories than whether they are equal.
You put what I think into words much better than I ever could've. It's why I don't think most of the characters, regardless of route, really have much of an inequality in terms of romance, as most of them are satisfying narratively and explore another side of the character and how they've changed or are changing (in whichever direction) coherently, compellingly and consistently.
Ironically, SH is missing an act 2 scene, which for many could be considered a big oversight. Even then, I think her romance is good, my answer is pretty predictable but I think it's Minthara and Wyll who got shafted here. I'd say Halsin too but eh, I think they did what they set out to do with him and there's not that much else there.
