did riot nerf turret hp?

I think it's because of how the new HP bars on turrets look

I think it's because they buffed stats across the board except for AS (If I remember the patch notes correctly in that regard that is).

Not sure. Turret armor got normalized across the map.

New dragon bonuses contribute to some extra damage in the game. Although it's not common to get 4 to 5 drag stacks.

I don't think it's just psychological. I mean turrets visually get damaged now.

I think maybe Riot nerfed turrets on purpose. I think maybe the point was to nerf sieges and turtle-ing.

It does feel that way.