Because Tyler Robertson grew up in a Mormon family, perhaps?
That was my first thought when I heard the story. RWNJ pissed at the Mormon's because of CK (or that event at least was the tipping point for long-held animosity)
I'm not yet disabused of that notion, though it could be totally off.
Not bashing LDS generally but they do do shady stuff as an organization, such as baptizing dead people (from what I've read) 
EDIT: fixed name in title, thanks!
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