I think pretty much everyone agrees with you on that, I haven't seen anyone advocate that students _should_ be treated all alike. It's just that providing individual guidance requires more teachers and thus more money...
And then someone comes in and suggests that we don't need so many new teachers if we "use technology" to help fill the need, like some learning app could be the silver bullet that revolutionizes teaching. Maybe it will some day, but seeing what we've had so far I'm not exactly holding my breath waiting to see that happen.
In Germany the zeitgeist is: equal opportunity = treating all students alike (even ones with special needs). If you are arguing for more individual and specialized education, you are widely considered anti-social and it is suggested that your intend is to build / maintain a small (educational) elite that aspires to enslave all others...
Remember that there is no German school system. Education is subject of state (Länder) law. So there are quite some differences between different parts of Germany. Traditionally, some 30-40 years back you were supposed to know whether you go to university or not at the age of ten.
However, this is no longer really the case. Many prepare for university in theory, but never go there.
And then someone comes in and suggests that we don't need so many new teachers if we "use technology" to help fill the need, like some learning app could be the silver bullet that revolutionizes teaching. Maybe it will some day, but seeing what we've had so far I'm not exactly holding my breath waiting to see that happen.