The idea that only swarms can sound good, or are the ideal fix for any
possible ailment your system has is just not supported by evidence.
I do not believe anyone here is making that claim. I'm an advocate of using the Swarm because it fixes bass issues by breaking up standing waves in the room, something that can't be done easily with both room treatment and bass management combined.
But I have more than one system in my home. My bedroom system only has one sub, and by careful placement I got it to work great in the 'listening chair' :) But the sub in that case is not intuitively placed (such as in between the main speakers) and the bass cannot be heard throughout the room even though the rest of the system is.
In a nutshell, we are talking about an advance in how bass reproduction is done in the home and the advance that a distributed bass array represents is major compared to the prior art.
Accepting what science does can be really helpful. It can help keep you from getting sick. The results of science has allowed people to fly around the world. It allows light in the dark at a flick of a switch. It allows amplifiers to sound like music. In the legal world, there is a principle called 'dirty hands' which in a nutshell works like this: 'you cannot reserve a right for yourself that you do not also confer to others.' The idea that one can accept science to allow for light in a room but not accept science to allow for proper bass reproduction is to me simply ridiculous.