No , I would not change groomers for this. First of all there is no way for you to know for sure that the groomer even knew this happened. Sometimes you can get so close to the quik that it will not bleed for hours & then boom, you look down & suddenly there is blood every where
Not even a Vet can cut nails without having accidents once in awhile. On the other hand depending on the circumstances if the dog was cut or injured I may be looking for another groomer. I have had 2 bad incodences with 2 dif groomers years apart with 2 dif dogs, 1st one my yorkie had her ear cut bad enough for stitches, something hit the front window of the salon & dog & groomer both about jumped out of their skin and Mandy's ear was cut. I got to the salon to pick up my dog & the groomer comes out with Mandy & groomer is crying & tells me what happened & says that she closed up her shop & took my dog to the vet & let me show where her stitches are
goes on to tell how sorry she is & that there is no charge for the grooming or the vet visit. She was the best groomer we have Ever had & we continued to use her till we moved out of the area.