I was just thinking of this yesterday and it just so happens on multiple occasions i get no comms.
I feel as Red Mage i am often the rez mage plus bringing dps and never do i get comms. Yesterday i raised several people in our group, including the healers a few times in the 24 mans.
The machinist was going on about how he appreciated the healers and while i did not say it i thought to myself what about us rez mages raising your sorry asses all the time. lol
Plus the fact that i always transfer mana to the heals and sometimes other Red Mages or Bards..

At the end of the day you cannot let it bother you, and just enjoy the game. There is more things to worry about in life