Brackenhide Hollow First Boss, Rira Hacklaw's Savage Charge is Not Staggered properly

The first boss of brackenhide hollow’s tank buster “Savage Charge” is listed as physical damage but is not staggered at physical damage stagger amounts. I have logs to prove it :/. Any word on this?

I would present the logs and your findings in the Peak of Serenity Brewmaster discord. The theorycrafters there will take a look, I doubt you’ll get much traction here.