Backhanded compliments?

I just got my transcription of the open-ended student evaluations. Generally they are flattering. But I'm not sure what to make of the following:

Can’t say anything bad about Colyer. Anyone who fails this class is ignorant.

Hmmmm. Given that one of my anonymous raters on ratemyprofessor.com opined "His objective is not to fail anyone..." I wonder if its time to ratchet up the intensity

Of course that was followed by

I think he should make it slightly easier to get an A.

*shrug*.