ChatGpt is a statistical tool that aids the analysis of quantitative researches from the end of a researcher. In fact, it is going to be helpful to the reviewer himself! Again, making use of the statistical package should not result in the rejection of an unplagiarized research work.
A reviewer of scientific work should have high scientific standards and sensitivity to academic ethics. Therefore, the judgments s/he makes are not just technical matters, including for example plagiarism and fabrication via ChatGPT. It would be completely unethical, I think, for an academic writer to use chatGPT. Or maybe I'm just too old fashioned?