Dashes are easier to type, especially for non-typists, and read better to non hackers—are also far less confusing when handwritten—so it's potentially a convenience for end users.

Why would any of those non-OPs/non-programmers be involved in typing the name of controllers?

Also what exactly does that have to do with the programmer OP whos having trouble getting mojo to call the correct controller (perl module)?

Seems to me the most straight forward thing to do, since OP is already typing all this out, is to tell mojo in perl module terms what to call, not in shorthand terms