While a lot of those techs are not too bright, there is a good contingent of them who know a lot more than you (or I) do. They just cannot tell you what they know. Verizon has a solution to every problem. For example, if I were to complain about lagging, their solution is sometimes to install ATK. Dumb, right? But, even if the rep knew that rooting would fix this issue, he would be fired if if was found out that he was telling customers to root.
On a different note, why complain to a tech about the launch? He not only has nothing to do with it, but he also is not responsible for tracking non technical complaints. I have to be honest, if someone had a problem, called me, then told me I knew nothing, and then lectured me about a problem I had nothing to do with, I would yell at them too.
=-Nkk