not thinking about it further

I can write a whole piece on just this statement. People do not think, in my opinion, enough anymore. There is so much focus on (i) replying and (ii) appearance, that thinking becomes laborious and people often want to avoid it at all costs. I think this goes back to our previous comments on people not wanting to feel discomfort etc. But I can go on about this for too long!

they didn't understand the art

True, but I watched something again today on Barthe's essay The death of the author and how this symbolizes the birth of the reader. So not understanding something speaks more about the reader than the author. But meaning, even the absence of meaning, lies with the reader.

And I appreciate your long replies so much

The pleasure is all mine! If we had more time on our hands, we could go even deeper. Also, if I had more time to read up on all the theories in art, my own understanding of things would have been even better. But time is valuable and so finite.