I don't know how bad you are, but I regularly take out ZG in a pug. If you aren't able to regularly, I assume the problem is with your skill, not your peers.
As I am looking forward to the feature, along with many others, it is hardly a waste of resources. Maybe they would be better put to use for you personally, but the other 10 million of us can and will find a use for it.
LFR will be the most convenient way to have a cross-server, on demand raid pug. Just because you wouldn't enjoy that experience doesn't mean it isn't convenient.
Big red letters didn't make your points any more valid, either. In fact, it simply made it easier to notice how closed minded you are.