Yes, these unauthorized bios are silly and intrusive, usually nothing more than info that has already been printed. But, they're also a good sign that you have reached a great level of success. He can write his own book someday. 

As a writer (amongst other things) I am painfully aware of the personal feelings of the people I interview/write for. I would not dream of publishing material about someone without consulting them *and* their managers/agents/publicists etc. One wrong word could cost me my job. There may not be procedures set in stone for some cases but it is always good professional conduct to make sure that the material you are about to put out into the wider world meets the expectations of the people who feature heavily in it.

This appears to be rather unprofessional practice. I would die in my shoes if someone I had written for were this upset with what I had written.

I just hope they've got their facts right... because if there are false statements about him in this book it counts as libel... he could sue. (Not saying he would but it's an option.)

Anyone I interview gets treated like a person first and foremost, their career achievements come secondary to that.

*Gets down from soapbox*