Well, this thread can be closed.  They have no intention of fixing!

I received the following from Tech Support as I tried to pursue this issue further:

I've shared your feedback and the link from our community site with our Office of the President team as well as sharing product feedback through the help drop down in my program.  I've also shared this feedback with contacts I work with that partner with our engineers.  Unfortunately, at this time there is no plan to increase this limit.  Our engineers have taken this feedback seriously.  They are focused on ensuring the program doesn't crash when creating statements and decided that going above 4,500 customers could cause the program to crash.  

I know this limitation impacts your workflow of generating statements and I'm sorry that there is no plan to change the limitation in the near future.