if an amputee were healed and with proper documentation etc etc i'd convert to a religion
Wouldn't that be kind of hasty? It's not like WWGHA is the only good argument against the veracity of religion ... Try praying for something that doesn't exist, say. Pray for an echolocative sensory organ. Or infrared sight.
Well, I guess that's what you meant by "proper documentation" ...
Even then, how to be sure this was a god, if it's even causally correlated with prayer to said god, if it's a complete quantum fluke that happens ones in a googol universe's lifetimes, an unlikely mass delusion, or the effect of magical healing rays sent in random directions by a benign hyperdimensional race looking suspiciously like MoO2's Trilarians by copulating with a huge pink fluffy cloud of laminated cotton candy that was before snifted in moft and thoroughly glurbled (it has to be glurbled or else destef sargub nhm).
There's an infinite number of possible explanations for any phenomenon you know is supernatural in origin (however that's supposed to work) but know nothing else about. You'd have no basis for deciding what is plausible and what's not in regards to it. You can't even assign the label "unexplainable" without commiting a fallacy simply because you don't even know enough to conclude that.
In short, still no reason to believe in anything in particular - just like the myriad of unexplained phenomena that are well-documented but poorly understood (like quantum mechanics' objective randomness, the formation of freak waves, spontaneous remissions, dark matter/energy, etc).
Even if Y were well-documented and
accessible to quantitative analysis, it wouldn't necessitate any god (although it may at least point that way heavily in principle); but we might assign some values/attributes to X and search for patterns.
Seems perfectly naturalistic to me, though. I mean, you can describe patterns very well without having the slightest idea about the underlying structure or any proof of their validity (objective randomness itself). Seems qualitatively different ofrom religious belief as is, too - we're talking about a scientific theory that necessitates a god.