Academic language

The University of Oldenburg provides students with guidelines for academic work. One of them reads: “Academic language is objective. Topics are presented subject-independent. The author moves to the background. Write ich-frei.” Literally: I-free or free of I.

Using “I” is considered in German universities to be un-academic, un-scientific. The passive form is used: “The following statements argue that …” or “It can been seen that …” But, isn’t it the case that a person (the author) performed the research and the analysis, and formulated the text?