Does APM remote logging works only after adding device remote logging?

This apm logging is not working at all but only works when I also add the same syslog server to system - logs - remote logging....why??

I have created a publisher with a destination that has a HSL pool member in it and then I apply it to apm event logging ..

But nothing is sent to the syslog until I also go and add a remote logging server at the device level..