You are correct!
But my statement was made as a huge oversimplification of this extremely complex and convoluted concept that is 'art'.
I mentioned "aesthetically pleasing" a couple of times I think, and in one of them, "aesthetically pleasing" in this case would be the perspective from the artist, not necessarily the audience, as the artist sets out to create something, and (in an ideal scenario) will conclude it once they deem it "good enough", "pleasing to their sensibilities", ergo, aesthetically pleasing, at which point, the artist calls his work 'art'. Yes, you have artists who are grumpy and emo or just low on self-esteem, who think their stuff is not good enough, but in my experience even those will try to achieve something they are at least to some degree satisfied with before sending it out (and if you ever took an artist's unfinished work and went ahead and called it 'finished' and published it, oh boy, that can be terrible for them, I've seen it happen, it isn't pretty).
From the perspective of the viewer though, once again putting it in extremely oversimplified terms, one will call something 'art' if they think it's "good", if it pleases them; or they will dismiss it as 'not art' with statements like "this isn't art, this is garbage" if they don't agree with the work. In both cases, it elicits emotions, as you said art should, and an outside observer could call either option 'art', because it made the viewer feel/think something. But if what the viewer felt was that it was not art? ...is it art?
Context is also extremely important: If I see a pile of bricks on a construction site that's neatly stacked, it might please me, I might find the proportions are nice, but does that make it 'art'? Now if we see that pile of bricks on a gallery and they say it's 'art' and put a pricetag on it of $100k, suddenly that's 'art'?
I hate art!
It's not a concept easy to define and is extremely dependent on sociocultural perspective. So I went with the simplest way I could possibly put it: You make/see something, you like it, you call it 'art'.