Neanderthalis did not have wisdom tooth issues, and it looks like very early H sapiens did not, either.
The theory is that pre-bread societies chewed a lot more - MUCH more - and the stress induced growth in the jaw bones, which in turn made more room for the wisdom teeth to grow in straight.
I read an article about a controversial orthodontist or something, who espouses the same theory. This is why whenever skulls are found from before the industrial age, and thus before processed food was common, they have perfectly straight teeth. We were probably evolved to eat much tougher foods than we eat today.
The theory is that pre-bread societies chewed a lot more - MUCH more - and the stress induced growth in the jaw bones, which in turn made more room for the wisdom teeth to grow in straight.