What is your own view on the matter you asked about John?
One of the best joys I got from the haters was just how wrong their beliefs were. The main thing is that they say that this revelation came from out of nowhere. Except, it didn't. There were hints on the show that it was planned that Twilight would eventually become a princess from the very first episode.
Let me ask you one question, do you expect ANY student of royalty to not get some kind of life changing reward in their life? Heck, with the evidence that there is no known child of Celestia, I wouldn't have been surprised if Twilight was the planned heir to the throne. Oh, and why did Twilight get a crown when her element appeared, while the rest of her friends got a necklace of sorts? Yeah, not too subtle there, writers.
However, overtime, it has been shown that being a princess in Equestria is more of being proven that you deserve to rule. That you have the traits needed to carry out such a responsibility, and if you ask me, Twilight Sparkle has definitely earned that.
There is no doubt in my mind that Twilight deserves that title more than anyone. Even if it was planned, she earned it in the end.
So yeah, I wasn't surprised, because I saw it coming from the beginning, and I take joy in just how wrong the haters are in this.