Yes and no. Hume's dictum that miracles must have a shit-ton of evidence (extraordinary claims, blah, blah) helped science dismiss the reality of meteorites for a very long time, for example. Rocks falling from the sky? Go on! Epigenetics is a vital field now - but one that was discovered, rediscovered and buried and ignored for many, many decades. "Methodological Conservatism" shouldn't be generalized into a dismissal of anomalies.