a slow transition to this singularity can be observed
  reviewing our history

Citation? Atheists, using the modern definition, were known in Plato's time. Many so-called atheists today _promote_ facially superstitious beliefs. For example, the anti-GMO movement.[1] Indeed, I don't think I've personally ever met a single individual (myself included) who didn't systematically exhibit superstitious beliefs.

A propensity to superstition might be an unavoidable byproduct of abstract reasoning or of complex social organization. The first question shouldn't be when do we become true atheists, but whether we want to be. The next question might be, how do we devise processes and institutions that independently address our biases and superstitions, either by mitigating or reshaping them.

[1] Because lack of evidence is not evidence. Neither is appealing to uncertainty or supposedly unacceptable risks (annihilation of all humanity) without _quantifying_ those risks. In rational discourse there's no avoiding accepting the limits of existing knowledge. But people aren't very good at abstaining from drawing conclusions.