No, I'm sorry. I think I misread your first sentence. Where I read "scientists", I interpreted "science". You're right that there have been people called scientists who have asserted false claims dogmatically, but, in case anybody's reading this, I'd like to make clear my opinion that that approach is not at all scientific.

I think that the main message of the picture is that only religions (with Christianity being the most prominent form in the West) require their adherents to engage in the above caricatured kind of systematic retreat from verifiability and falsifiability. People who are called "scientists" can make dogmatic claims, but science doesn't require them to. It does the opposite.

Again, I'm sorry to misread your first post. To answer your question: I wasn't suggesting that. The scientific method is applicable to religion (and Christianity specifically) when the religion makes claims about the natural world (e.g. the presence of dragons of this picture, the virgin birth of many religions, the Genesis doctrine as it is literally interpreted). These all occupy different positions on the spectrum of testability, but they are still claims made by religion that can be explored scientifically.