When I "invented" the remote greasing kit it was only as a convenience particularly when on away touring, as it meant it could be done easily without getting clothes dirty etc. It does NOT eliminate the need to check fasteners and issues of surplus grease from time to time. I also have a pipe end fitting on the grease gun which when its lever is pressed, opens to grip the nipple , thus eliminating the 'Fight" to get the fitting on and off the nipple - Purchasable on E-Bay for about £15.
Cheers!