There is a lot of value to standardizing things though. Most of what people need to learn is standard. 2+2, i before e... There is the more nebulous step of can you solve problems, but even that is taught at the lower levels in a standard way.
Eventually you get to a level where the answer hasn't been taught much and so there is no standard, but that only happens late in your education.
Of course education itself needs more research. "learning styles" was debunked last I heard, but is there some variation that says some people need different teaching? Is there a better way to teach things? However if you are not involved in this research you should be teaching in standard ways that have been proven to work.
Eventually you get to a level where the answer hasn't been taught much and so there is no standard, but that only happens late in your education.
Of course education itself needs more research. "learning styles" was debunked last I heard, but is there some variation that says some people need different teaching? Is there a better way to teach things? However if you are not involved in this research you should be teaching in standard ways that have been proven to work.