But it also prevents your team from taking out aliens, gives the aliens time to get better evolves and generally spammers hit their own team more than the aliens.
At least, it works better to teach noobs not to step in the LOS of your friends while they are firing. Getting hit by a few bullets doesn't hurt too much and can be ignored, but get hit by a fully charged lucifer and you won't be doing that mistake again

In my opinion, suppressive lucifer fire at a base entrace has it's uses, mainly psycological :
- Scare away the 3 tyrants and the 2 adv dragoons sniping and picking kills on your base the time it'll take to replace/repair some critical building
- Scare away the human on your team who can't stop feeding the aliens more and more points by uselessly charging at them
See, it's really a multipurpose gun

In fact, my two other favorite uses are to push back alien attackers from a strong position and to wreak havok in the alien base in a very short time with very little ammo. Best gun ever.