Whether to choose the first or third person really depends on the editor of the journal or book.publisher. In academic/professional writing, the author is supposed to have an unbiased position. In order to make that clear to the reader, no first person is allowed.
For a long time, authors used "we" instead of "I." The "We" is also called the royal "we" and I personally find it quite derogatory, especially when I disagree with the author.
These days, people understand that academics have their own sets of biases and preconceptions due to personal and other experiences. And these experiences shape the topic, the way the informatio is arranged, etc. However, personal experiences should not shape the outcome or bias the argument in any way.
Some publisher now permit the use of "I" in limited circumstances to lay open personal experiences, biases, and preconceptions in order to enable the reader to assess the article or book.
Writing without "I" is not particularly difficult, once one gets used to reading scholarly material, writing without "I" becomes second nature.