The way I see it is the following. 

Many Africans don't know how westerners like to eat their spaghettis. For most Westerners, rolling them around the fork is part of the fun, while most Africans overcook the pastas and cut them short. I was served a lot of spaghettis cut in small pieces by my host in Africa.  It's not a big deal and always good intentioned but it would certainly start to be problematic if a person with the same good intentions would go to the supermarket and start breaking all the spaghettis "because they should be no more than 3cm long". I think that we are typically dealing with something of that nature. It might be well intentioned but it is an issue.