Carl, I think you have the liberal lens problem. You're assuming that your sample of very advanced religious people is representative of the religious population as a whole.
Quite simply, the premise applies to the masses, but not your small sample.
Carl M
I don't agree with your premise, Daniel. Most of the religious people I have known and respected do not believe that only members of their religion will get into heaven (whatever they believe heaven to be). They don't pretend to know the mind of God. To be sure, there are plenty who do make such assertions, but I don't believe that they are in the majority. For that matter, there isn't even universal agreement as to what heaven is (or what hell is for that matter). In any case, I don't believe "that most religious people do believe what’s espoused in the first two frames."
I fail to see how putting words in to people's mouths and then debating the words you put in to their mouths leads to a logical conclusion. Who specifically stated that Buddha was/is a god to refute that argument? Who specifically said that since Buddha was a man, and it's wrong to call a man God? I'm sure someone did, and I'm sure that someone doesn't represent the whole, or even a part, of the Christian community. This comic is about as logical as Chick Track.