Sadly, none of this surprises me.
Although I have great respect for Bea Arthur's ability to say her lines and portray her character, I've never heard anything positive about her personality, or her ability to "play well with others." There's really no reason to behave like that in the work place. The job gets done one way or the other. Better to get it done while maintaining a respectable reputation.
I can imagine it would be frustrating to watch Estelle bungle lines over and over again. I really can. But even back then, Bea should have wondered what was causing a seasoned actress to fail so miserably over and over again. They should have been worried about her........not angry at her. Ultimately, she did much better when she went on to do her character on Golden Palace. Interesting, since although she was older, she had the advantage of doing it without the stress of being around Bea. Again.......sad.
I own a copy of the book you've pictured, but haven't finished reading it. It's a beautiful product. Very high quality.