You're turning it from 1-2 loot enhancement items going to the DPS and 2 items potentially going to anyone to 3-4 items going to DPS. The only time tanks and healers would "sense progression" would be when all the DPS have all the drops they want from a turn or in the extreme outlying case of all items voted over being healer and tank items. Hardly "a little something every once in a while" for half the group.
