If you can't kill that jugg with 4 people. No matter the gear, none of you deserve to play this game.
A well played (and well geared) guardian vs. a bunch of recruit geared peeps who deal ranged/melee damage (to allow for defenses) could actually go on for a LONG time. There's the non-channeled Force Stasis, the AoE mezz, the push, the 4s stun, maybe add in a stun grenade to the mix, defensive cooldowns, WZ medpack + temporary HP buff, area slow....
I've seen it happen, didn't take full two minutes to kill him, but certainly more than 60 seconds. Felt
like ages, at least.