Classical discussions distinguish muʿjizah from karāmah (a saintly grace), istidrāj, ihānah, and sorcery. The differences concern not only apparent strangeness but also the claimant, circumstances and evidential purpose.
A saintly grace is not a proof that its recipient is a new prophet. Other categories consider misleading appearances, humiliation or deceptive means. Their theological meanings cannot be inferred solely from how surprising an occurrence seems.
Consequently, labeling every striking event a miracle, or treating it as evidence of prophetic office, overlooks essential distinctions.