imagine unironically making a gun be more compact and easier to carry while maintaining the same barrel length and muzzle velocity
But is it worth the drawbacks? A huge part of accuracy is a good trigger and ergonomics, areas they're weak in. And while they are easier to carry due to their compactness, they tend to be heavier. This is more of a technicality, but it also feels unsafe to have the part that goes boom right on your cheek, which also makes ambi shooting impossible (with most platforms).
I think the main advantage here is being able to rapidly adapt between CQC and regular long-distance engagements without compromising on muzzle energy, but ultimately compromises in both areas