I see no reason why we should buy this from BMW. It's very clear that BMW see's no reason why to allow us to access our spare/tools in a convienent manner.
Therefore, its up to companies like Funf AG to research & develop alternative methods to combat the superior engineering that BMW has shown in this department.
The shorter answer to your comment...yup - much easier. But clearly not as fun as pointing out the stupidity/cost budgeting crisis at BMW.