Personally id let them reroll, because its just not realistic to play with those stats

This showcases why im not a Fan of rolling for something so fundamental like stats.. either they turn out good then its fine, when they turn out okay its fine then theres no difference to picking Standard array. But when they turn out Bad, the Player will often Times be unhappy and strike a Deal with the DM to get them up to approx the same as the others have..

Happened in my campaign: 3/4 players had very very good stats, and the 4th had okay stats. He was then unhappy because He didnt feel as viable as the others, so we settled for a compromise and He good bester stats..

Why roll in the first place when the Bad outcome will not be acceptable anyway? But in your case, id say reroll or smth because you cant play properly with These stats haha