*snip*
Yes, OP is not a right world. It's just, bad implemented. You get lots of extra hp, but at the same time you become useless in combat. The only viable option of wildshaping druid in 5e i can see is as a living wall in narrow corridor, to prevent other melee combatants to reach the rest of the party.
I'm not sure I understand, are you saying that the Wildshape feature is useless in the base rules for 5e? Even for a Moon Druid?