I agree about the difficulty of developing major new technologies in secret.
But you seem to be mostly overstating the problems with accelerating science. E.g.:
These passages seem to imply that the rate of scientific progress is primarily limited by the number and intelligence level of those working on scientific research.
Here it sounds like you’re imagining that the AI would only speed up the job functions that get classified as “science”, whereas people are suggesting the AI would speed up a wide variety of tasks including gathering evidence, building tools, etc.
I agree about the difficulty of developing major new technologies in secret. But you seem to be mostly overstating the problems with accelerating science. E.g.: