Collection Development or Censorship?

Shades of The Great Scrotum Debacle:

REGINA -- References to bullying, breasts and the word "bazoongas" have made a children's book nominated for a Saskatchewan award too hot to handle for a southwestern Saskatchewan school.

British Columbia-based publishing company Sono Nis Press says that Trouble on Tarragon Island, a novel by author Nikki Tate, has been censored by Elizabeth School, a kindergarten to Grade 7 school in Kindersley.

Shockingly* enough, I haven't come across this series before.  Judging from the synopses of the books at Nikki Tate's website, they sound like middle-grade reads, which means that they'd make sense in a K-7 school library. 

[Note:  The second one in the series is called No Cafes in Narnia, which is a GREAT title.  SLJ recommends it for grades 5-8.]

Obviously, libraries can't carry every book out there and choices have to be made, but this situation (the book has been nominated for three awards, including one local to the school) sounds more like censorship than collection development to me.

*I'm being sarcastic.  I've complained before about the lack of Canadian books here in Maine.  Right.  On.  The.  Freaking.  Border.  (Well, actually, Kennebunk is not right on the border at all.  But the state is.  Whatever.  It's annoying regardless.)