false, i know people who dont do savage nor ultimate but actually complainng and care about their damage, theres some people who complaining in this forum dont have a trace of doing savage nor ultimate, casual player also complaining againt time they need to finish a dungeon because of their job lower dps etc etc, so sorry, its not only high tier players matter.
if you are talking the NEED to care about damage then theres no need to... why? all class can clear them even in week 1...