It all depends. The hook is all that matters, and in this case, you’re banking on the setting to hook a reader and compel them to continue reading.

Critically, you must ask yourself: why would they keep reading when I’m giving them a rundown of (this) setting? Is it that unique? Did I grab their attention well enough using prose, picture, purpose? Have I paced this right? Can this information be used elsewhere? Does this read like a welcoming into a world, or more like a pamphlet, a lecture? So on, so forth.

You’d realize you’d need to be one hell of a writer to just rely on that, where the prose, or the way you weave words, captures an audiences attention sufficiently enough that so that you haven’t set yourself for failure. You must also realize they will be judging the rest of your work on that opening. And so then you also must consider the audience itself - maybe setting would thrill wanna-be scientists or environmentally conscious folks, maybe even some historic buffs with a focus on nature, but fantasy readers may want something more. Especially fantasy readers who would be attracted to your book in the first place. And you likening your story to Pride & Prejudice… is that what you’re aiming for?

I can tell by the fact that you even asked this question, and the things (hint of magic, matchmaking, etc) that you chose to single out from your proposed opening to try and use to convince us, the redditors, that this is a good idea, means you should probably start elsewhere, but I could be wrong! Just throwing some ideas out there.