As a straight male gamer myself, the lack of decent looking romanceable women bugged me at first.
I mean, Morrigan, Leliana, Isabela and Merril are far superior to Cassandra and Josephine in terms of looks and I would argue in terms of character arc and personality as well. The best looking female follower who is interesting in Inquisition is Vivienne and she is not romanceable.
But over time I got over it because there are positives to everything.
Since the straight male romance options for Inquisition are rather mundane and mediocre, I do not have to take them seriously. I do not have to emotionally invest in them at all. Eventually, due to the fact there were only two dull options, over time, it just became a dull sluggish affair. Like romance in real life.
Which meant over time my straight male Inquisitors just stopped bothering about romances. Now my straight male Inquisitor does not romance these 2 available options because "Hey, these are decent looking women with some interesting personality"...but instead romances them because "All right, I am stressed because of my workload as Herald and I need to bang a chick somewhere, no brothels, I have 2 cliched unattractive choices, one a Disney princess and the other a religious tsundere so let's just flip a coin and go with one."
If Bioware's goal was to make straight male games disinterested and indifferent to romanceable female characters, they sure did succeed. Congratulations.