Did you just turn a rhetorical cliché into a discussion on the philosophy of possibilities? Yes, I believe so. Cool. Perhaps specific coincidences are rare, but are they rare in general? Seems more likely that people get off on inferring patterns and assigning structure and meaning to randomness. It's probably biological. The proto human who could recognize the pattern in the edible leaves survived. This question was thrust into the physics community in the 20's when they discovered quantum effects. They started having debates of whether some particles were deterministic but unobservable or truly non-deterministic (therefore not fatalistic, I think). Didn't take long for them to be like fuck it, the non-determined math works well enough.