Aiming for not producing a particular feeling is in itself, still an intention. The artist purposefully painted in a particular way, hoping to evoke feelings in the viewer, albeit particular unspecified and viewer dependent feelings. But that's the intent! To produce whatever feelings are yours.

I think TFA conflates two things a bit: "While painting this picture, I had nothing in mind." — let's grant that as true. "All my works [… have] been painted with no intention at all." — that's different: my point (and I think the parent comment's) is that painting with nothing in mind is an intentional decision.

While I granted the statement about painting with an empty mind, I also wonder if that's true: if the point of art is, as TFA states, "be about the feelings it creates in you. The viewer." then did the artist not have feelings about the art as the art was being produced? Can you separate yourself from the process? Can one have an empty mind, especially while trying to do a focused task such as painting, and for long enough to complete the work? It seems close to trying to not think about a thing, which becomes all the more impossible to do the more you try to do it.

I also think there's a leap from "Art is about the feelings it creates" and "I believe that no interpretation of an artwork can be right or wrong." The artist might be able to say, "there is no interpretation of this art that is right or wrong", as that's their intent … but there is definitely art out there the intent of which is to produce a particular reaction within its viewership, so I think the statement is a bit too broad.

But what do I know, I'm a software engineer.

Yes, exactly!