Comment #4 on issue 745 by stephane...@gmail.com: There is no need by default to specify the importerClass when invoking the MooseCompositeImportTask subclasses http://code.google.com/p/moose-technology/issues/detail?id=745
No I was stupid in copy and paste, most of the time we can remove importerClass: invocation. I should do a pass and remove them. This was useful when we had famix20 and famix30