Minion damage tooltip is NOT a visual bug.

You can actually increase and decrease your minion damage by adding and removing skeletons from your army.

You can swap back and forth between having 15 skeletal snipers and 16 skeletal snipers and get 20 different variations of damage on the tooltip.

This translates in maps as you can play with it until you have the highest damage on tooltip and your minions will kill faster.

If you believed this was "just a visual bug" then you believe that the game was calculating EVERYTHING perfectly in the background, just wasn't able to show the calculation.. for like 6 months. Yea right.

Game is broken.