It is worth it, not necessary. The extra reload speed is very nice, box breathing is fantastic for now. If you just run the mission once per week and grab the 6 chests you'll get it done over time. But honestly the heroic version isn't too bad. Most importantly be patient. Don't try to rush the jumping part and focus on making your jumps, with a good loadout and staggered supers it's fun and achievable for most people.