He hasn't made a statement about Joss Whedon... because his anus and penis are paralysed.
"My anus is kinda paralyzed and so is my penis, which is weird. I gotta sit down to p**s because I don't know if I'm s**tting or p**sing," said the L.A native.
https://www.thethings.com/buffy-fans-are-confused-as-nicholas-brendon-claims-he-has-a-paralysed-penis/