iOS 4.3 Messages Double Vibrate-Good or Bad iPhone 4

We are just users like you. We will have no idea why apple made this change.
macbook pro 17 inch - iPhone 4 Mac OS X (10.6.6)

Well as some of you may remember, with the addition of the 2.1 operating system for iPhone they had an automatic reminder text if you did not read your message. Now this is a good option to have and is an option today, you could not change it to stop when it first came out. Now this double vibrate is a good feature but you should be able to change it. Why would they change this after having the same vibration for three years. I love the old style vibration being that it was so short and almost impossible to hear, this new vibration should be an option. And I would rather the double vibration for the email considering I get them much less frequently but like how you can now distinct between the two. Even though I already could because the email vibration is slightly shorter than a text vibration.
iOS 4