Honestly not trying to generalize, stereotype, or undermine people who don't fit the norm, but I have noticed that female players tend to gush about the romances more than male players. Not saying this is universal, not saying all women or men do this, etc. It's just, when you get into forums, threads, reviews, conventions, feedback for the game, etc. Women players tend to put more stalk in the romantic content (explore it more, comment on it more, ask for more for the future, maybe become more emotionally invested, etc.) whereas men tend to be more likely to talk about it in passing, as an afterthought, or skip it entirely.
Maybe this could be part of why female players get more romance options this game...? BioWare might have figured, "F***k it! Female gamers tend to play the romantic content more, so let's use our romantic content budget to include more romances for female characters." I don't know what BioWare's thinking and so can't speak for them, but that's my guess.
(And again, it's just a guess! I don't want to see female gamers replying to this post with: "But I never play the romances!" or guys going "But I love the romances too!" Or "Not all gals play them/Not all guys skip them." I'm just commenting based on what I've observed, and am using that to make my guess as to why BioWare might have made the decisions they did this game.)