I think a lot of people got bored because this story talks too detailed events and scenes about politics which is really boring. Also they have less romantic scenes and this story is like a really slow pace one, so if you're not into politics you'll get bored of this.
I like detailed politics when they're done well (The Great Wish, Accomplishments of the Duke's Daughter), but this author just doesn't know how to do it that well.
I think a lot of people got bored because this story talks too detailed events and scenes about politics which is really boring. Also they have less romantic scenes and this story is like a really slow pace one, so if you're not into politics you'll get bored of this.