My (limited) understanding of the Toyota concept of Standard Work is an emphasis of capturing what the current best practice is. It is not about sticking with a simple practice with an emphasis of using the standard as a place to improve. The emphasis on creating a standard process ensures repeatability and that you can teach it to people.

Where people go wrong is that they focus only on enforcing the standard (avoiding improvement) or forgetting to communicate an update to the standard when things change (people are taught the wrong things).