I don't know much about this project and I have never used it. But in my experience as a developer and user of software I couldn't disagree more.
The longer something can stay a one-person project, the better! Nothing kills creativity, innovation, and velocity faster than having to make every decision by committee.
Big communities are great when a project is in its maturity and mostly needs tending and slow evolution. They mitigate the risk of a single developer getting bored and walking away, or turning into a murderous wacko, or attempting to monetize the project to death. Not naming any names.
But when something is being built from scratch? Give me a single developer with a fat internet connection, alone in a cabin in the woods with a shed out back full of Red Bull :)