Strength of Wrynn buff not being added to Summon Gargoyle damage

[Speaker1264]

Describe the bug
The buff, Strength of Wrynn, is not increasing the damage of the ability/pet, Summon Gargoyle.

To Reproduce
Steps to reproduce the behavior:
Go to the DPS Death Knight sim.
Spec into Summon Gargoyle under the Unholy talent tree.
Enable Summon Gargoyle in the rotation settings.
Enable/Disable Strength of Wrynn under Misc buffs.
Sim and compare the damage of Summon Gargoyle under Results with the buff enabled and disabled.

Expected behavior
Summon Gargoyle damage should increase with the Strength of Wrynn buff enabled.

Desktop (please complete the following information):

• OS: Windows
• Browser: Firefox
• Version: 122.0.1 (64-bit)

Additional context
Here is a log showing that Ebon Gargoyle (aka Summon Gargoyle), is benefiting from Hellscream's Warsong (aka Strength of Wrynn):
https://classic.warcraftlogs.com/reports/GbvgKF2hkj4rtBL7#fight=14&type=auras&source=57