A profit model based on the defaults is certainly pretty reasonable, and eforcing that on manufacturers is perhaps logical, but if a company is afraid of lettin

A profit model based on the defaults is certainly pretty reasonable, and eforcing that on manufacturers is perhaps logical, but if a company is afraid of letting the user change the defaults to use different combinations of products that they prefer then you are basically the reason for antitrust legislation. (Either the products require this coercion, few people would switch or you are using a product in one area to prevent new competition in another.)