Sure they have a long way to go, but that's very far from impossible for them to surpass SAF in the eyes of everybody but Manchester United fans and Scottish people I guess. How can you be objective and claim neither can ever get there when they're still really young coaches? Again, top red stuff.
Anyone can have their own opinions and perspective on the value of certain competitions, but what Zidane has done is historic on its own, and there's been a lot of great teams in the past that have failed to do what he has, he's got plenty of time to get to more titles depending on how long he decides to remain a manager. Pep managed the team that most people will consider the greatest club team of all time. I'm not talking about British fans, but the average fans across the globe aren't going to remember or care what SAF did in Scotland, people hardly even care of the circumstances, what stays through history is what was won, how many times, etc. Pep's got 8 league titles across three different leagues, with plenty more time to collect, and already just as many CLs as SAF. I'm not saying either are guaranteed to have a better career, far from it, but I'm fairly confident they will be likely remembered and spoken in the same sentence if they keep at it the way they have so far, only time will tell.