Midway strength could not cancel the intelligence gap

Would Japan not have been stronger at Midway?

Not in the way the plan required: American intelligence knew the Japanese approach, while Japan did not know the American carrier position.

Nominal strength did not give Japan a clean advantage at Midway because U.S. intelligence had already exposed the plan and American carriers were not where Japan expected them. The Japanese force therefore operated without equivalent awareness of its opponent. Force totals cannot be separated from information and positioning.