I totally agree with you and since I have first-hand experience of the German education system along with the mittlestand model and while being a Pakistani I have always been comparing things, ponder and make critical observations. Knowing after the war how Pakistan financially helped Germany, and now we are no way near them in any sense. I also had the privilege to talk with some senior citizens, the generation that actually built Germany, the things they told me I can only dream that we as Pakistani could ever live and think with that mindset.
For the German education the dual track video you posted is actually just 1 type of system, in reality it is a 3 track system and it will be very complicated to explain and unnessesary for this discussion. However just for the perspective, students while being in school based on their aptitude/grades/some other factors are put into the respective stream. For example you do not have the mindset/aptitude of being a doctor during the school years, you will be fizzled out of that path and you will not be able to choose medicine once you graduate high-school (brilliant use of resources) however you know how things are in Pakistan, influential people can move things and get you seats, in Germany if you have been put out of a stream no one can put you in
, without being sexiest we all know why most of the medicine seats are occupied by female however most of them never join the labour market (mindset and culture).
For Pakistan, the problem is multi-faceted. From our basic education even to the ethics of our populace and many other factors. Even the religion(fake mullah religion) has made a great dent in our society, our mindsets, etc. Most of the world has a perception that Germans are hardworking which is absolutely false, politely saying they are extremely lazy however how it translates into success is because here we have a say and it goes like "do the thing right the first time so that you do not have to do it again" and everyone lives by this mindset.
I have been a strong advocate that if Pakistan really wants to sling-shot itself, we should follow the same mindset but in-order to achieve it we need to implement the same mindset first across the board, "do it right the first time", however many brilliant minds in Pakistan advocate the evolutionary approach that with time things will improve, in theory, yes they will but it will be a very slow process and can easily be sidetracked as well. Even if you look at the present political situation, any sane mind can see how the nation was looted for the last 40 years but the very same political parties come out on TV, streets and pretend they did nothing, and they still have their support base as well (either uneducated, plain dumb, or vested interests).
It can be a very long discussion but in my opinion, if we really want to fix our country it can be done only if we fix our legal system and bring in a bulletproof accountability system, rest of the things will take their appropriate shape within due course. As long as we will be shifting among dilemmas we will reach nowhere.