50NL ignition - zone (no reads)

I found this spot pretty interesting, I was actually considering shoving for thin value. Found wizard is using 2/3 sizing on the turn, but it prefers a block bet 20% pot on the river. Not sure why it wants to block bet over a more normal sizing. Then when facing a raise wizard is folding over 60% of the time. This was pretty surprising to me, seems like a pure call to me. Not sure if I'm being too much of a station on the river?