Correct. The IHSAA does need to limit the amount of practices allowed for all sports over the summer in my opinion. Im sure football was the first on the list for restrictions due to the collision nature of the sport and the use of protective equipment that can lead to increase of the likelihood of heat problems.
Winter sports can only meet and practice twice a week for two hours at a time during a six week time period during the fall, the same amount of time Football can do during the winter and and spring six week sessions.