No!" We have a thing called methodological naturalism."
Does one mean from the above expression that Atheism have faith/trust/ in or subscribe to Methodological Naturalism or believe in it or follow it religiously, please?
Right, please?
As Darkstorm said, it's just a tool; an investigational modality, like multiplication or radiometric dating. If it's useful in an argument, anyone's free to use it.
Most atheists, though, wouldn't be able tell you what methodological naturalism even was.