IF you see a Moodle course as the place to develop and maintain alle the coursematerials for a subdomain - as a kind of mini-CMS - it would be nicer if week and topic cards can be hidden instead of dimmed: For example: I have to organise this year a shorter course, so I leave several cards out.. but students still see the forbidden cards and will ask...
The same for tasks: If I develop a complete set of tasks, for example group tasks and individual tasks around a subject on one topic-card, it would be more elegant to have all these individual tasks hidden and not only "forbidden visible", when I choose to organise only group tasks around that topic in the next course....