What makes the results of Juventus last 2 matches unreal is they couldn't even score 1 goal. Is it possible that there are problems within the club?
Of course it is possible, and even in the beginning of this season Juventus has not fully improved until now so the results you see in the last two matches from Juventus are very reasonable results because the team that beat Juventus is also not a weak team this season. So what makes you think that the achievement is unreasonable? While for most people it is very much deserved by Juventus because the team has not fully improved itself in this season.