You May Call Me Old Fashioned

You may even call me a stick in the mud. Even so, I do believe that, if you have a plural subject (in this instance, "non-compliances") in a sentence, it is a good idea to marry it to a plural verb:

Whether it is the fault of the Sydney Morning Herald or of Shayne Watson or of the education system, I don't know.  I'm sick of being mean to the poor old Sydney Morning Herald though, so I'll blame the education system today.