Should I report an aid that I witnessed being rude to my mom? I am afraid of repercussions for my mom.

My mom had a fall a few weeks ago that landed her in the hospital and rehab for 3 weeks. She is in the final stages of Alzheimer's and has at a minimum, moderate dementia. She is very unsteady on her feet and is now in a wheel chair. I walked in yesterday and an aid was standing behind her with her hands on my mom's shoulders telling her she can't get up an "when is she going to get it through her head". When she saw me she said that my mom keeps trying to get up and says she has to go to the bathroom. One of the other aids came over and said that my mom had almost feel that morning. I took my mom to her room and into her bathroom. She did go to the bathroom. I then just stayed with her for several hours in her room listening to music. She took a nap until lunch, which is when I left. I am just afraid to complain because I am not there all the time, although I visit every day, and I don't want them to take it out on my mom. Am I just being too sensitive? I know it's not an easy job, I lasted about a month taking care of her after my dad died. The other question is how do you keep them from falling if they insist on walking?