Cool. I don't play D&D like a boardgame, so that's not a concern you should continue to harbor. And, if it's something that players don't like, that's absolutely something that should be discussed at the table and added to the social contract. I'm perfectly fine with someone not liking another player reading aloud from books during play because it's distracting. I said this above, even. My point isn't that you have to like this, or that it's something that's routine at my table (it pretty much doesn't exist at my table) but that the content read aloud doesn't matter. That I don't care that players know monster stats by any means -- this isn't an issue for me. You not liking another player reading aloud during play -- cool, let's take that to a table discussion and forge a way so everyone's having fun.
But, again, in no way does someone reading aloud at the table turn a game into a boardgame. I mean, I don't even get how that would work. Sure, annoying, but I'm not familiar with the same kinds of boardgames you are that feature reading aloud as a defining trait? Which games are these, so that I might avoid them?
For you it doesn't and that's fine. For me, it takes me out of the moment and pulls the focus from imagining a legendary fight to a pile of numbers and math. Then again, I don't like watching "how it was made" documentaries about movies either, I just want to enjoy the movie magic and be transported to a different world for 90 minutes or so.
So sure. For you it doesn't make it more like a boardgame. Never said it did. It does for me.