First off, I think Item Level should not be forced, it should be the decision of the people queing up. To do that SE should make a better Duty Finder Options Menu with a better filter on it. E.g....

--Player Filter
Language-> JEDF (can select multiple)
Player Type -> Casual, HardCore (can select both)
Cutscenes -> Enabled, Disabled
Average Item Level -> 55, 60, 70, 80, 90, 100, etc (Can select multiple)
Number of Tanks -> 1, 2
Number of Healers -> 1, 2
Healer Spread -> Check box "Prevents two whm, or two sch, etc"
Tank Spread -> Check box "Prevents two war, or two pld"
--Gear Filter
Need Disabled -> Checkbox, for gearing out alts