User blog comment:CompliensCreator00/PvZ Beta?/@comment-5797509-20131127130619/@comment-5792287-20131128163359

Actually...

 In the US, April 1st is a day of jokes. And so the team had the idea of creating a fake ice level build.

I used Copy-paste to take that from the note. In other words, it IS confirmed that the ice level was a joke.