Science isn't religion. It hasn't burned people at the stake for contrary theories. Nor cut out their tongues or chopped off their hands so they can't speak or write. Nor is there an official priesthood. Nor is there any process of excommunication.
You are free to use any analogy you choose. But this reader finds the one you used unconvincing. If you like it, by all means continue to use it.
No, but that is because error in religion has graver consequences than error in science. Of course my analogy is very limited, -- all I am saying is that sola scriptura is an instrument of introducing error through irresponsible preaching, and it is hard for me to imagine that the concept was invented with an innocent intent.