Other than the fun factor

Do you really need another reason?

I’m joking, btw. It should also be easier to maneuver and less likely to roll over when turning, though I’m not sure how often that’s an issue with regular cargo bikes or trikes, since they’re not usually ridden at high speeds

There is also a cargo frame which is quite modular and you can change as needed depending on your needs, so you can attach a basket in case you prefer it