If Dybala was still with us, he would've also had 0 goals and 0 assists this year
you can't speak in absolutes like that. there is no way for us to know what he would have or could have done. what we can do is use his past to determine possible outcomes. and his past shows even under mediocre allegri last season, dybala was top scorer and top assister.
what we can determine also is that is was definetley a mistake to let him go cuz his replacements have been worse. di maria has played less than him. pogba hasn't played at all.
saying he is out till next year like it's 7 months away. october is done so that leaves 2 months. pogba being out since july till january is bad. chiesa being out since january of last year until november is bad.