I enjoy the pacing better in this chapter than the originals. While I appreciate the mirrored scenarios describing the differences over a year of social rehabilitation, the story flows better this way for a longer form manga. Plus, we get a little more backstory framing the entire manga premise. Nice.
Except you're entirely off-base? You're argument is about the trope of "FMC is ugly except to the MC", but that's not even what Louise even mentions. Literally, she tells the MC that the other nobles call Alba "A savage woman", "Damaged goods", "Just a pawn". So, I'm basing this entirely off this particular English translation (so it might be wrong, given the original), but none of these descriptions have anything to do with Alba's beauty. (And of course, it precludes anyone saying that the FMC is ugly.)
A "savage woman"? Alba is cutthroat and will mercilessly maim you regardless of what you do. "Cutthroat" has nothing to do with physical appearance. She's simply a mercilessly capable knight who will slaughter you if that is what she intends or needs to do.
Alba is "damaged goods"? It's already been established that she's one of the strongest fighters in the knight corps. Any "damage" is unlikely to be physical, given her capabilities. Her "damage" is either because she's been sexually tainted (EXTREMELY unlikely given her physical capabilities), or because she's not seen as a women who is capable of traditional "womanly" actions, such as homemaking a baby rearing. Given her capablities, it's likely the latter. This insult is about her status as an "incapable child-rearing woman" and not as a "whore who can't keep her legs closed", or even as a "fighter who has been mortally wounded". Her "damage" is that she can't supposedly fulfill her only "role" as a woman in this society.
She's "Just a pawn"? This is an insult to her capabilities and mindset, stating that she's unable to think for herself, and simply performs orders and acts based on what she's been presented. This is somewhat shown in this chapter: Without anything else to do in the house, she self appoints herself as the front guard, which is probably something she had to do multiple times as a knight. She doesn't know what to do or think for herself, so she defaults to her training. And a pawn will only move to the predetermined positions given their limitations and orders. Even so, this still gives her agency, but doesn't have anything to do with her physical appearance.