I think you may have an older version of the guide. I just downloaded the IAG and I don't see this instruction. Please get the final shipping version of the guide from now.netapp.com.
Just to be clear, you do not need to install on the RMS any longer.
Any documentation stating that you need to install on the RMS is a documentation error. Please let me know where you see that in the current guide and we'll fix it.
Alex