Why should a group be forced to take certain classes?
We tried to do this with two melee and a Jug tank and couldn't get any better than 50% on the first boss. The fight has way too much going on for a melee group to be able to complete it on HM. We wiped for hours and ended up going into the red for durability twice before just giving up.
(Everyone was in almost full Rakata)
read my post in the other thread, all melee can be done very easy