The text clearly says 100 % GLOBAL physical but as you can see here:
https://imgur.com/iWkgpM1
https://imgur.com/0XRusjN
The physical damage increase by a flat 100% which is not a global but rather a typical 100% increase to physical damage of the likes you would have on your gear as affixes for example.
I say its not working as intended: Not only the wording using the term GLOBAL % but also take in consideration how ridiculous it would be to spend 4 skill point into that node (25 % per point) for a :
- Low-end Tier 6 Worth of physical damage buff
- Last only 4 second
- Cost mana
- force a character animation (stops your dps)
- has a condition to be cast on your bear or wolves
Did I mention 4 skill point?..
Clearly a mistake where it was meant to be global. A very simple fix so hopefully it comes quickly.