The problem I see is that IMSA is not being very transparent on the criteria for BoP changes. If the changes are being implemented based on empirical data, then it should be pretty easy to allow others to see what the data is indicating and what the goal is. All of these "minor" changes do add up.
EDIT: I know it's apples and oranges, but it reminds me of the NASCAR
CoT cars where safety, reduced cost and equal competition were the primary goals. Didn't fair well for them. The cars became too generic and lacked the fan loyalty to the brand.