I don't know why everyone thinks that the Janoa are the most physically impressive tribe. I don't know where this comes from.
From the Brudvir write up. "The Brudvir are perhaps one of the most physically impressive tribes. Sharing a lineage as one of the original Proto-Neran, they look similar in appearance, however taller and more muscular in stature due to a meat-rich diet. Standing around 6'3" (190cm) on average, they are tied with the Janoa as the third tallest tribe behind the Yoru and Dras. Unlike the Janoa, their height comes with significant muscle on both the upper and lower body, giving them an average weight of between 225-250 lbs (102-113 kg)." ... "Similar to the Hrothi they excel in physical strength and resilience, however their reflexes and agility suffer from their large form."
Look, the Janoa are faster and more dexterous. They have greater than average strength, particularly in the upper body. However, they are not the strongest. The Brudvir are the strongest. Their physical size and mass is greater than any other tribe. For pure strength the Brudvir are unmatched. Now, a Brudvir won't be beating a Janoa in a foot race any time soon, but one on one there's no question of who has the natural advantage. And, while the Hrothi may be physically resilient this is also not at all the same thing as brute strength. What is it with you people? Did you even read the tribe write ups? I admit the language can feel a bit ambiguous, but seriously, just look at the art. The Janoa are scrawny and lean. If an average Brudvir backs the average Janoa into a corner with nowhere to run or dodge to the Brudvir is going to hammer him into the ground.