
Er, no.
Sorry, but just because you stank at a game you had taken objection to even before you started playing does not mean that all 'real' guitarists are the same.
I play the guitar just fine, and I can play Guitar Hero pretty good, too - the skill from one does not help much with the skill for the other, they are pretty much 2 seperate skill sets, but being able to do one does not mean you can't do the other.