## Or, why should God not

?
It is God Who works miracles. Not man. God is not answerable to man. God did not have to call Abram from Ur, in the first place - He called Abram from the worship of other gods
because it was His will to do so. No other reason other than this is needed - that God willed it.
And so with miracles -
if God so wills, he can work through anyone whom He wishes: our human frailties are no barrier. Catholics are not the only creatures on earth
Whether, in a given case, there has been a miracle, is another question - but it applies to all claims of this kind: including Catholic claims. A lot of claims are probably mistaken, maybe fraudulent (though one must hope that is rare) - but the same may be said of any body of claims that a miracles has happened. And there is also the question of what is understood by the category of miracle - which may vary throughout culture and history, and from one set of believers to another. So such claims have to be looked at theologically, certainly, but also with an awareness that what may have seemed miraculous in first-century Palestine, say, might not be miraculous by the standards of Scholastic theology.
If God works miracles among Catholic Christians - why not in the history of the Roman empire ? The Roman historians have a lot to say about miracles - this was one of the replies to Christians; the gods had done may miracles on behalf of Rome, so the Christian God had no attraction on that score. These miracles were a vindication of the traditional religion of the Roman state - some of them are like those in the Old Testament, with miraculous alterations of weather (which is reminiscent of the fall of stones (= hail ?) which defeated the Philistines at Aphek).
Was the storm of stones a miracle
as we might understand the category ? God can use created things to save - it does not follow that those things are, in themselves, beyond or above nature. But they can still be mighty acts of saving power, in their effects, even though they might, in a different setting, be quite usual and unremarkable. A severe storm, scattering an enemy fleet, might be a miracle for its beneficiaries - it could be a saving act, without being “supernatural” - it could still be , in principle, the kind of event predictable by a meteorologist using the means at his disposal. Which is not in the least to deny that “supernatural” acts or events are, in principle, possible within the world as we know it.
If God is the same God in 1000 BC as in 2000 AD - why should we expect God to work miracles only for a very small section of the human race ? The category of miracle, implies a lot of questions, of many kinds. ##