Atlas Keystone "Growing Hordes:" Pack Size Increase Error

Error:
Growing Hordes states that scarabs give certain increased Pack Size values, but the amount increased is not as stated on the Atlas Skill tree.

Rusted Scarabs grant 5% increased Pack Size (as stated on the tree)
Rusted Scarabs grant 7% increased Pack Size while the tree states that they should grant 10%.
Rusted Scarabs grant 10% increased Pack Size while the tree states that they should grant 15%.

I assume there is also an error with winged scarabs but I did not test extensively.

Testing Method:
I opened maps without any map mods and observed the given Pack Size increase depending on the number of scarabs placed into the map device.

Ex. with a white map, one rusted and one polished scarab grants 12% increased Pack Size.

Edit: This bug was recognized on December 14th, however it has not been added to the "Known Issues."