Knowing that Luke did have sex at some point in his life does technically increase the chances of a closer familial relationship with Rey… but there is also still plenty of evidence out there that suggests that possibility is not really on the table (not to mention the fact that the statement makes it sound like the topic isn’t going to be addressed in the upcoming Star Wars: The Rise Of Skywalker).
One can expect that this revelation will also add some fuel to the flame in the on-going conversation regarding the parentage of Daisy Ridley’s Rey.
While Star Wars: The Last Jedi told us who Rey’s mom and dad were, there are some who continue to not accept the word of Adam Driver’s Kylo Ren, and they have continued to wonder if the heroine might be Luke’s offspring.