The fact of the matter is that this is true. As humans, we continue to evolve at our own rate and this means younger generations will not have to suffer from having wisdom teeth removed. This article below by the independent explains the evolutionary path we have found ourselves on as a species. It may not seem like much but evolution has taken its course.
" “This is happening in time as we have learned to use fire and process foods more. A lot of people are just being born without wisdom teeth,” she said.
The research team also found an increasing prevalence of people being born with additional bones in their arms and legs as well as shorter faces, or with abnormal connections of two or more bones in their feet.
Ms.Lucas said the study demonstrates that humans are evolving at a faster rate than at any point in the past 250 years.
The investigation's authors suggested changes in natural selection could be the major reason for micro-evolution".