Hello,
in this way you are also preventing any communication between clients and SEPM, i.e. less SEP related traffic and more bandwidth for the rest.
The biggest part of the traffic between SEP's and SEPM is made by the definitions, ensure to store not less than 30 revisions in the SEPM and consider to throttle the bandwidth usage between GUP's and SEPM in GUP's settings. However, sometimes, it is required to improve the qualitiy of the links.