I guess that "bare minimum" alt-text is better than no alt-text.
But giving people who can't view images high quality alt-text - a chance to enjoy an image properly - is (to me) just part of treating people kindly.
It takes me but a few seconds to type an extra sentence or two.
Bad alt text: "Cat"
Good alt text: "A tabby cat sitting on a windowsill, looking out the window with its tail curled around its body."
(Edit: I am thinking of those who could but don't, not those who can't.)
https://www.rnib.org.uk/campaign-with-us/alt-text-campaign/how-can-i-write-alt-text/