It would be a bit silly. What if things changed so much between now and release that brandishes and firebreak shields are now super powerful and super rare and super expensive and super hard to get in every way, and all these new players are joining up to see a few hundred players that just... have them already?
Also, you're getting your energy back, plus a bonus; getting back the stuff you spent it on would be like having one cake and eating two.
Isn't that just the nature of a Beta? I missed that part of the e-mail, but I fully expected it. It was the same way for RO.