Most implications of the Gospel Hypothesis are starkly different from those of the Myth Hypothesis, and miracles seem like they ought to be a prime example. After all, if God does not exist, then necessarily He is not going to be working any genuine miracles, and the closest we’ll be able to get will be superstitions, misunderstandings, and unverifiable rumors and legends.
Ironically, however, the Gospel Hypothesis also predicts that there won’t be any miracles—though for a very different reason.