Hi Satya,
I faced this same situation at one of the clients. We had raised this to SAP OSS.
You are correct that RGURECGLFNEX should be run by SAP OSS consultants only. They say that you are free to run this program on your own, but it is SAP recommendation that SAP consultants run it in your system and make necessary adjustments. This program can have serious consequences and if you are not aware on all steps how to handle it.. it can create problems.
Hence, I suggest that let SAP OSS consultant run this in your system.
Regards,
Kavita