App processing time estimate different than slowest case approval time

Hi @Anil.Gupta

My case U.S. citizen filing for a brother ,California processing center,receipt date for my I -130 file - 27 September 2012. ,till date no approval.
According to worst case, processing time for California center is 14year 7 month(19Feb,07)
According to the app for i-130 I get this message
“Estimated Date
You should have received your case approval by now. Is it stuck in RFE or security clearance? Raise a service request with USCIS to know.”
Is something wrong with the app. or am I am doing something wrong ?