It just confirms what was said previously: a SOTA amp with a damping factor larger than 10 to 20 will be fine. Keep in mind SOTA amps have damping factors in the order of 100 (200 to 400) across the frequency band. The Pass Amp is ages away from SOTA ( there is a review somewhere on this site - the Pass has many problems, not just damping factor).
I found that link quite telling of how a low dumping factor affects sound. Made it clear for me so thought it would help others to understand the impact as well. Indeed most well designed amps today should not have an issue