The truth is that it's not true. Being a SMAW spammer myself I have a lot of experience.
Check the leader boards for most kills. I did and the worst splash damage offender is the grenade launcher.
I checked the top 7 kill leaders and there is not a SMAW spammer among them.
The truth is the SMAW and other splash damage weapons are spoilers. They spoil the fun of hard to knock out players in sweet spots when nobody else can. They are a great asset to a squad at helping them advance. Taking out encamped enemies and vehicles are the SMAW spammers bread and butter. The SMAW makes a fantastic long range sniper buster in the right hands
A good SMAW spammer generally has a horrible K/D ratio. Why? Because one on one the SMAW spammer loses most of the time. He cannot reload fast enough and at most short range encounters the SMAW will not kill unless you hit the enemy in the head with the unexploded round. He also puts himself in the line of fire to take out the tough ones.
A sniper, land vehicle operator, flyboy or hallway camper will whine every time a SMAW spammer takes them out after they have gotten a 12 kill streak. Nobody likes to get blown up
The SMAW spammer also takes hiding places apart and creates a lot of rubble and dust confusing the enemy and sending them running for cover.
Yet the SMAW spammer will only have 3 kills and 22 deaths for the round.
Hug your SMAW spammer for his unselfish and heroic efforts
He is why your squad advances, you have a high score and you win rounds. You may not even notice that the confusion and terror created by the SMAW spammer has helped you.
Oh and every time you whine about it I know I have done a good job and giggle like a school girl
