Wait a minute here...
Let's break this down a bit by playing devil's advocate..
1. The standard basket BR weighs in at 65lbs.
2. You put a RTT on it which weighed 130lbs.
3. You put an awning on it which weighs 19lbs.
4. The combined weight of both people is 270lbs.
If we add up all that static weight, you're looking at almost 500lbs load on the roof. Standard OEM roof loads are only 150lbs.
With a rack, that raises it up to 300lbs, but only with even weight distribution. You've exceeded the maximums by almost 200lbs and you want BR to be responsible for dents in your roof? I'm a little confused as to how you came to that conclusion, to be honest. If I were BR, I'd point back to the manufacturers "when used correctly the rack has a max limit of 300lbs" and put it back on the owner.