Glue joints impeding resonance is a theory that has no consistency in practice. You can have a multi-piece body that is very resonant or a multi-piece body that isn't, a one-piece body that is very resonant or a one-piece body that isn't. The characteristics are unique because the hunk of wood in question is unique. Resonance in solid bodies is a quality we have collectively decided to value, but with a solid body guitar there is no quantifiable relationship between resonance (unplugged) and tone (plugged in). Corelation is not causation. A "resonant" solid body can have great tone or crap tone when electrified. This is debated endlessly because we tend to make up our own beliefs about it. Mojo is usually involved.