I thought it was already answered, but if squats were of high priority I really don’t think 2x bodyweight squat would be impossible for many of them to achieve. I never even mentioned fiber composition or that a 2x BW squat would achieve a low time. I wish! Not so much form drilling, core strength, plyos, tempo runs, flexibility work, etc. 2x BW squat isn’t even that great…
I do think squats and other lower body strengthening has its place. It has helped me, specifically with an explosive start. I do believe it becomes a higher priority if you’re a shorter sprinter. With that said my sprints have almost always helped bring up my squat to a certain degree.