Depends. R > 1 can also mean that projects are getting wrapped up and left alone, and their teams moving onto new stuff. Three people per module-project, three project cycles in, will have R = 1. That is not necessarily a bad thing, although it can be a liability if they all suddenly need attention at once.
R < 1 can mean that either the same functionality is getting reworked over and over, or people are breaking separation of concerns and concatenating unrelated stuff onto existing modules.
Ideally you want to be spotting the common patterns and replacing e.g. five 10k-line modules with one 10k-line module. But there's also an unfortunate tendency to favor consolidation into one 50k-line module. In that case they were separate for a good reason...
R < 1 can mean that either the same functionality is getting reworked over and over, or people are breaking separation of concerns and concatenating unrelated stuff onto existing modules.
Ideally you want to be spotting the common patterns and replacing e.g. five 10k-line modules with one 10k-line module. But there's also an unfortunate tendency to favor consolidation into one 50k-line module. In that case they were separate for a good reason...