Did we read the same article? They aren't claiming those things at all. Those are the claims of the original study, which are being disputed by this attempt at reproduction. The writers suspect those claims to be false due to the choice of the original study to not remove likely intentionally non-random data.
I believe the 13% stat you saw is that your score had a higher random score than than 13% of other participants, so not very random.
I believe the 13% stat you saw is that your score had a higher random score than than 13% of other participants, so not very random.