That’s weird. To my final question then, “why would you”?
If you didn’t apply ED, it’s obviously not your first, preferred, I-will-undoubtedly-go-there school. And RD apps were already due, so it’s not really any “earlier”. I can’t imagine there’s an admission decision benefit to “you weren’t my first choice but now I’ll say you are” over regular admissions. And you lose all decision making flexibility.
Especially if it means throwing away a “really good scholarship and honors college” acceptance.