We are no longer in All Stars - moved on to College - being out of that atmosphere and looking back, I have seen both sides. Parents that didn't ever want the coach to say anything to their child, and then ones that didn't care what was said.
My daughter has had a few different coaches over the years with different coaching styles - some more motivational, others more hard core - one a mix of both that she really connected with and loved and to this day credits him for everything cheer related - and still stays in contact with him.
I personally have never felt that she was put in a situation where she felt like she was being bullied by a coach - but she has had issues with mental blocks in the past - so the expectations of herself (she is a perfectionist) and of her coaches at times would mount up and I think that pressure - if a coach then would say something to her - depending on who it was (this was when she was younger) could lead to frustration -but I would not consider the comments bullying - just made out of frustration - if something negative was said -it was hard to watch - but I understood it for what it was - and never thought it to be bullying.
I think some coaches are better at coaching older kids, some at younger kids, some coaches are wonderful with kids who have mental blocks - some not so much- some coaches are better with lower level teams, some higher level - you get the point. I do think there are bad coaches that probably do not have their emotions in check when they are dealing with kids in any sport that may not be doing what they are capable of doing - Just like there are bad teachers - if comments are being made over and over again to the point that it is solely directed to one child on a daily basis - just to humiliate them - then I think that is an issue and is bullying - if there are just comments made, maybe in the heat of the moment coaching - sporadically - to the whole team, or even one child - depending on the attitude that the child displays etc, to me that is not bullying - Everyone says things they shouldn't at times - coaches - even parents - if the effort is made to talk about it afterwards and understand it - its fine - if its something that continues that you are not comfortable with - and its not resolved, then a good choice is to switch gyms.