Essentially, this is saying that cellular behavior can be affected by EMF waves. This is something most 5G proponents claim is not possible. This paper certainly doesn't prove 5G causes any problems, but it is a reason that we should inquire further. Knowing that such radiation can interfere with biological function means that employing heavy EMF technologies universally requires thorough studies of safety. The onus is on the 5G proponents to prove safety, not opponents to prove harm.