I think what everybody is missing is that it's not about "we can make it work", but about removing the weakest (easiest to attack) surfaces in "let's adopt Nim discussions". I like the insensitivity and it seems like a smart choice, but if I have to choose between this and 15 other good Nim features, I'll let the sensitivity go: Nim has many cooler things that I want people to use.
On the other hand, I think supporting a default setting which can generate an error if a label is used in a non NEP1 way in a project might be a good enough fix: * it makes a self-contained project almost case-sensitive by default * it still lets people use the imports with the naming they want, or turn it off
