You'd think that in 4 years and 2,000 comments, somebody would have pointed this out.
You'd also think somebody would have reported it as "needs mature tag"
It turns out that many people have pointed this out; you had to scroll past the description to post your FVD.
It turns out that this doesn't meet the requirements of
FAQ #220: What is Mature Content?It turns out that people have reported it and it turns out that dA backed up this opinion when the original report for "mature tag needed" was rejected as "Invalid; no action" in August 2011 (nearly 4 years ago)
If you scroll through the comments a bit, you can find a fairly detailed analysis of
FAQ #220: What is Mature Content?