I need the opinion of midwives

I am 20 weeks pregnant, and I picked out a midwife that I liked. She has 20yrs of experience, and I found her through a friend that used her and also liked her. Everything was smooth until I noticed a string of bad reviews that had been posted to her webpage. They’re all associated with a previous client of hers whose child’s arm was paralyzed due to the midwife pulling too hard. They’re mad enough about it they’re trying to get people to spam her website with bad reviews. Basically, what I want to know is this; is this a serious offense in midwifery, where I should absolutely avoid this midwife? Or is this just the nature of medical work where occasionally something bad happens, and it could happen to any good midwife? I’m conflicted because I heard how awesome she was, and I personally liked her, but these reviews are making me question as to what my next step should be.