Comic Strips

Your unreasonable bias against any attempts to understand the world instead of relying on traditions of unknown origin does not substitute an argument against it. Neither empirical or analitical method of scientific research is limited to some sort of elitist and corrupt academia, so your view of academia being elitist and corrupt doesn't disprove the efficiency of those methods. And no, the knowledge doesn't come from practice at all, if it did then ritually practiced traditions would lead to understanding of their roots and their purpose, and humans didn't learn about spreading of diseases from burial rites, but rather from events when those rites weren't practiced. Furthermore, we didn't learn how to deal with those diseases from the traditions, but rather from breaking away from them and studying bodies instead of getting rid of them - which faced much backlash from the church, which wanted to uphold tradition no matter what.

The knowledge comes not from practice, but from study, from testing different approaches and writing down what worked, until you get testing sample high enough to figure out why it worked. And then, people who figured it out probably taught others what to do without sharing in enough details why it works, and puff you have a tradition. And if people do share why stuff works and publish their research data and methodology, then we have knowledge, based on which other researchers can conduct their own research, check if they get similar results and whatnot. Peer review is a rather robust standard for truth, as far as human capabilities go.

Academia being gamified in a way that only approved research gets funding or spotlight has nothing to do with traditions themselves being any good either. Most often power is legitimized via tradition, and many scientific institutes were muzzled because power following tradition found their pursuit of knowledge undesireable. The fact that many research topics are taboo is direct result of that.

Lastly, your idea that the academia is isolated from the "feedback" of the "real world" is completely nonsensical. Nothing that's not peer reviewed isn't treated as particulary valuable, and you peer review the research by repeating the tests with the same methodology. That's specifically the feedback from the real world. Any sort of feedback that shows some parts of tradition should be changed is commonly met with resistance however, so it stands to reason that the opposite of what you claimed is actually the truth, and it's tradition that suffers from lack of the "feedback from the real world".