Yep that likely but seeing the ability of the Emirate to defeat and hold against numerous Byzantines tentative i’m guessing that with active Fatimid support they could probably hold for at least another half century
Yes that is true depends assuming bardas phokas becomes emperor he heads to the east first like nikephoros phokas the east would be defeated Cilicia would be reconquered aside from nikephoros the other comanders where still alive
I don't know for how long bardas would rule but after he reconquered cilicia he migth try for Crete in 970s
Assuming that he is alive he is most likely killed like nikephoros and taking over by John Tzimiskes who would most likely sent another force if one hasn't been launched already
If bardas phokas does become emperor and dies basil wont have to deal with him
As for worse case scenario assuming that Jonh becomes emperor maybe bardas phokas rebels I mean he did so because very specific reasons under basil and sure did he did rebell after jonh but thar was mooching of nikephoros success as Emperor
When bardas rebelled for a second time he dealt with an unexperienced basil and even that that civil war didn't collapse the empire
His first rebellion was even shorter as the other dealt with him quite quickly so yeah
This is why unless the Arabs of Crete have full support from the Fatimid caliphate they would be in trouble on the other hand the butterflies could mean a longer living John Tzimiskes and or no bardas phokas rebellion