Williams theory that the bones were in such excellent condition that they appeared to be around 35 years of age.
Not a theory. It is an archaeological observation, not disputed.
scientists have already discovered that their dating methods were underestimating the age of bones and they had come up with a new method that showed them to be a bit older (but not centuries older, like William claimed
I made no such claim. However, if you insist on "claims" here's one: Nobody knows the lifespan of paleoman.
Nobody.
Their new dating method is still wishful thinking.
There's no proof that they didn't all die at 32, of nothing, or at 250,000 of boredom.
As for the noble savage hypothesis, it was civilized man who murdered 200,000,000 of his own kind in the last century. How's that for noble?