Sure, computer science is not about a specific computer. But it is definitely about computers.
"Mission accomplished." -(fake) E.W. Dikjstra
My strong impression/suspicion is that Dijkstra had a great sense of humor and also enjoyed irritating people; it's puzzling when people take things like his comments on programming languages as serious rather than tongue-in-cheek, but I suspect he would have been amused.
I learned today that apparently Dijkstra won the Dijkstra prize in 2002. (I'm not sure what the qualifications are, but if I were to choose then it would be awarded to the most brilliant, and irritating, computer scientist who has made a groundbreaking contribution to a particular field.)
How would one solve a computational problem non-mechanistically? Even if executed with pen and paper, or sticks scribbling on sand, any algorithm is still mechanistic.
Without making the claim that LLMs have intuition (and certainly not inspiration), what you describe sounds analogous to an LLM with function calling.