Mozart was creating random compositions with dice as far back as 1792.[1] Pollock was playing with randomness in painting in the 1940's, around the same time that John Cage was innovating with randomness in musical compositions.
The use of randomness in the arts and music has been going on for a long time, so something like your ascii art is probably not going to raise an eyebrow today, though maybe if you did it 100 years ago and managed to get it in to a museum or gallery it might have looked novel then.
That said, I wouldn't put it past some galleries to display it anyway, especially if you do it in a large quantity -- say having random text cover all the gallery walls, or make the font really gigantic. I'm sure some people will love it and consider it some kind of profound statement on the mechanization of modern life or something.
[1] - https://en.wikipedia.org/wiki/Musikalisches_Würfelspiel