I was still subscribed to your thread, haha.
Considering brewing your own green tea just has "green tea" in it, and no preservatives, artificial sweetener, fake coloring, and fake flavoring, yeah, I'd say it's still worse than brewing your own.
The problem is that it has fewer antioxidants (which is, if I recall, what you wanted this for - the health benefits), which they don't show you on the bottle. The first post I left had a quote about how poor the antioxidant levels are in bottled tea compared to home-brewed tea.
So you'll get more of a health benefit if you brew your own, plus it'll be a lot cheaper in the long run.
Mmm, you've just inspired me to make some! :)