On behalf of an anonymous reader:
After submitting an article to a journal, I have received a revise & resubmit decision along with two reviewer reports. The changes suggested by the reviewers and the editor seem reasonable and doable. However, it has occurred to me after I received the reports that the statistical model I used has limitations. These limitations had neither occurred to me before, nor were they noted by either of the reviewers or the editor. I think the sound thing to do would be to change the model and the data for this are available, but I am concerned about how this will look to the reviewers and the editor.