Sue Richards is not from the OP verse, so that makes her irrelevant. Even if the same ability appears in another series, the fact that it appears in another series, makes it pretty much another ability. That she can do it doesn't mean Barto can do it as they do not have any connection with each other. Many abilities pop up in different series and still in one it's extremely powerful, but in another extremely weak.
Proof of that is that Sue Richards powers have been explained. She doesn't create barriers, she uses a type of energy which she, among others, can use as a barrier. Barto does the complete opposite, he doesn't create any kind of special energy, he creates barriers. That's what his DF is, barrierfruit and he is a barrierman. He doesn't create something that functions as a barrier, he creates barriers. So the nature of their powers is very different.
In reality that kind of logic doesn't make any sense, but that's how Oda works. That's why I said before that the concept of a DF can be considered on itself a hax as Oda decides where he draws the line. Almost every DF can be considered highly powerful if you start thinking of what would be the most powerful way of using it. But thinking like that is quite futile as then nearly every DF becomes über powerful. It's really wrong to approach a DF from that perspective and consequently interpret it as that then the DF would be too weak if he can't do that, because well that's how DF work.
I also already said that in the end it comes down to Barto's intentions whether he wants to use them offensively or defensively, but in essence they still remain barriers as Barto indeed doesn't have that much real offensive power. Hence also my conclusion that his DF is a barrier in the true essence of the word. I mean he inflicts mainly damage by the recoil force of the opponents own attacks (for example Hack) or by pressing people against a solid surface with his barrier (those guys in the Corrida Colosseum). The only attack he has done so far that seemed to have done some real damage, was his Barrier Pistol, but in the end that was also a barrier 'defending' his hand and just functioned as some kind of gauntlet. Inherently Barto's DF is a defensive type DF. I mean he could easily make them far more damaging by just changing the shape of his barriers, but so far they were all flat or round surfaces and I really don't think that that is just result of him having little imagination.
I mean if for example Buggy would be able to transform himself into thousands of little sections, he could enter people's bodies and cut them up from the inside. Are we now going to consider his fruit also highly powerful despite the fact that it was so far quite weak?
