Is high P1 stress here acceptable?

Hi folks,

I'm trying to design and test a 16mm aluminium hub similar to this product. However, the stress analysis comes back with rather high P1 stresses for 30Nm input torque:

Is P1 stress around the shaft holder supposed to be acceptable or is the product just not designed for 30Nm? If acceptable, how come? I thought 30Nm is meant to be fairly low. I've also attached the part.

Thanks

SolidworksSimulation