Trivially, if everything is a miracle then the term has no useful meaning.
Not true at all. I very much am of the school of thought that great genius and mystics walk the same grounds. The mistake of the 'lesser minds' than those like Einstein, if you will, is they conflate the transcendent with the mythic or the literal, or more pointedly the pre-rational. The former understand the need for metaphor to describe what is wholly beyond our minds of reason and our best sciences. The latter mistake them as descriptors of concrete reality, and must be either rationally sound, or dispensed with.
You find this same thing in the greatest minds of our age in this collection of some of their more mystical writings, including Einstein, Schroedinger, Eddington, Heisenberg, Bohr, Pauli, Plank, etc. :
https://www.amazon.com/Quantum-Ques...words=quantum+questions&qid=1619121514&sr=8-1
This quote here is a favorite of mine, which is not quote mined or anything like that, as those who may find Einstein's more mystical thoughts troubling to their beliefs about him might wish to say to dismiss it. But this captures his thoughts wonderfully about this.
“The most beautiful thing we can experience is the mysterious. It is the source of all true art and science. He to whom the emotion is a stranger, who can no longer pause to wonder and stand wrapped in awe, is as good as dead —his eyes are closed. The insight into the mystery of life, coupled though it be with fear, has also given rise to religion. To know what is impenetrable to us really exists, manifesting itself as the highest wisdom and the most radiant beauty, which our dull faculties can comprehend only in their most primitive forms—this knowledge, this feeling is at the center of true religiousness.”
- Albert Einstein, Living Philosophies
So the whole point is this. Clearly Einstein did in fact see the whole of life as a miracle, or Mystery, and it certainly did not mean the word has no meaning anymore if everything is a miracle. It does has NO meaning scientifically. But it has
great meaning spiritually, humanly, which is what Einstein was talking about. Those who can't see it, can't see the miracle, or the mystery of life itself and be in silent awe before it? They are "good as dead", he says.