stat.talkedToVillager doesn't add the score when right-clicking a villager with no offers.

The problem is when a Villager doesn't have 'Offers', and the player right-clicks him, the score is not going to be added into stat.talkedToVillager. If you want to reproduce it, try summoning a Villager with no trades, and adding the sta.talkedToVillager objective, and then right click the villager to see how the score is not going to be added.