This one would have it right if Marauders/Sentinels, or any class for that matter was hard to play. The difference between playing a Marauder and any other melee, or even ranged right now is night and day. The only thing that compares is powertechs/vanguards.
Marauders/sentinels are not only easy to play, but output easy, high damage numbers, with amazing defensive cooldowns on short timers. Something has to give somewhere, cooldowns, damage, mobility, utility.
My operative would love a slow that got applied with auto attacks. :\