Blair, for me, is just... not good. I'm not into the stocky, chubby drawf thing, and her personality is straight trash. She makes early Lyriel look like a saint.
I think your memory is playing tricks on you.
I replayed the early part of the game recently, to unlock the scene with Lyriel in the stocks, as it was the only one missing from my game.
Lyriel attacked everyone in the house, individually and en masse.
She manipulated Cait, she was horrible to the MC.
Yes, we knew it was bravado, but that doesn't alter how she behaved.
She was rude, aggressive, abrasive, superior, sulky and brattish.
Blair tried to escape & seems to be hiding, or lying about, something. She's clearly trying to figure everything out.
I don't think that's anywhere near as bad as Lyriel was.
Honestly, the hate she got when she was introduced was high.
Her story & character progression allowed people to enjoy her more.
She's now in the top 3 for, I imagine, most people.
If the dev can do that for her, it's not unrealistic to suggest that he can do the same for Naomi, Yona & Blair.
Not saying make them top 3, but by giving them more depth, enabling more people to enjoy them.