The newly bought guitar has a splayed dent.

This is normal. When I look at it, the same is true for single-board guitars with more than 10,000 yuan. Compared with Martin and Taylor, this is the case. Moreover, the paint surface is also very thin, probably because the pianist didn't get such a thick top coat considering the timbre. There will be no influence, and no one can notice the position of the pilot hole. Do not have obsessive-compulsive disorder, the position and shape of sound holes are standardized, and no burrs are qualified products. I hope my answer can help you, and I wish you progress in your study!