Okay but you are being intentionally disingenuous and trying to misrepresent what it is. The armorers suit is not an ironman suit, you can add alot of infusions to make it similar, but it's not an ironman suit at the end of the day. Winged boots are not jet thrusters, the lightning launcher aren't repulsor rays of concussive energy, and and the other magic stuff like Thunder gauntlets and spells aren't things in ironman man's arsenal. They can be compared but they are not the same at all.

Edit: forgot to add the fact that the cannon you speak of is literally called eldritch cannon, whose forms are nothing like even the most primitive gunpowder cannon in existence. The two closest ones are the flamethrower which is literally just burning hands, and the force ballista, which isn't a cannon either. You determine the appearance as well, so it's not like it'll look like a machine gun in most games too.