the Neolithic North African paper
has been discussed here :

7 ka IAM has Y-DNA pré-E-M183, in the E-M81 branch descending from E-L19

studying the TMRCA's in the YFull tree Ted Kendall concludes that E-L19 is Ibero-Maurisian

E1b1b1b1-Z830 was identified amongst Natufian and both E1b1b1b1-Z830 and E1b1b1a1-M78 were identified in PPNB Ain Ghazal
E1b1b1b1-L19, the third branch would then have chosen another path and have arrived in Morocco

what is your opinion?