This is just a very nasty letter.  There is a Katie Lynch who is the Co-director of the Undergraduate Adviser Environmental Studies;  Environmental Leadership Program, which makes this letter suspicious.  

https://envs.uoregon.edu/reference/staff/

Since Emily Semple's campaign seems to be picking-up momentum, while Skov's is flat-lining if not in decline, is this letter a desperate move by the Skov camp?   And was it written by Skov, who solicited one of his colleagues to submit?