http://hh.pokerjuice.com/hh/KyxiaUL7a3

On the river we don`t block anything, but air vs gto bluffs ratio is still 4:1, which should make it an easy call?
Very confused, how can it be so high.

I put his flop cbet range everything minus 64,84,T9 (85%), turn went check-check, so I excluded Q8+ from his range.
River vbet range hh (maybe should include 97?) and checking range 45+.
But even if we include all 47+ straights into vbetting range, he still has 45%/17% air vs gto bluffs ratio.

Any thought whats going on here?