It is not a sword that shoots bullets. It is not a gun you can stab someone with. It is a sword that explodes when you pull the trigger.
dragoons are sick and this is why:
- spears are better than swords
- jump real high
- fight dragons
- LOOK like dragons
- kinda edgy but not FULLY edgy
Maybe they can stab, maybe they can inspire, but essentially it's saying "I could take another soldier capable of doing grievous harm... or I could use the slot on looking fancy" and any class that you can use to express your hubris is a good one.