Yes, I expect that. Since I pay a ton of money for a Deluxe resort and you (Disney) spread the news, I expect you to make me do a check in where I'm not accepting something different from what I'm expecting. It's not getting out of control, it's being clear on what I'm signing for.
And Disney has always being fast in changing things online even before official announcements. So, it doesn't seem something so crazy to me.