Half of them don't even work. Go to nessus and you'll find the ether resupply one where the servitor is immune the whole event, the glimmer extration one where the 2nd wave either doesn't spawn or it takes ages (though the ship did spit out 3 treasure chests somehow). Aside from that, they are boring as hell. Just get rid of them already. Make world bosses or something. Or something like this season's battlegrounds but in real time. Or large scale battles you can jump into.