There's a similar sentiment in the first SICP lecture <https://youtu.be/-J_xL4IGhJA?t=48>, when Harold Abelson brings up the examples of computers and computer science, physics and particle accelerators, biology and microscopes and Petri dishes, and geometry and surveying instruments. All those tools definitely help, and indeed one would struggle at this stage to research without them, but the tools aren't the goals of the sciences.
I'm not sure what Dijkstra would have thought the "goal" of computer science was, but in the lecture Abelson seemed to think it was about describing procedures and processes in a formal manner.