It's true, sometimes having a bunch of different active items can be challenging and hard to even think about. This makes for scenarios where most people just prefer passive items because they are usually just as strong (if not better) and require way less thought. This isn't entirely true, some passives like orb of iron or sidewinder can get you killed if you aren't playing around them but at the end of the day it's just a play style thing that you have to switch up. Now we get to autofire. Part of being skilled at games is knowing how and when to use your resources! In Counter Strike, you could get really fucked if a random flashbang went off or you didn't have your frag grenade when you needed it because it over killed someone. This is also the case in Synthetik. Most of the time you don't need the damage that the autofire contributes. Saving your items for when you have to reload or when there is an elite pack is much more valuable, but autofire can remove this option completely. Sometimes you are in combat hiding behind cover and it goes off wasting it completely. All of these scenarios don't happen too often on their own but together compounded with the fact then autofire when it does do damage is usually overkill makes for a pretty frustrating mechanic that offers little benefit. Items like Orb of Fire are similar expect the cooldown is so low it doesn't matter that it proc's a lot when you don't need it cause it's up again in time. Item's like the M26 MA Shotgun System don't have this luxury and are much more effected.