Armorwing statue glitch?

This statue is the only one where the bonus does not add up to at least 100 % at level 5: 69 % wood gathering increase, 28 % fish increase. Is this intended? Why?

A few recent statues have had a 101 % bonus total (Chicken, Thunderpede, Rumblehorn), and the new Eruptodon statue has the best total bonus with 120 %. Who decides these things? What’s the rationale?