I also second the Nubya Garcia album. I was getting ready to write why Yussef Kamaal wasn't on the list, who I discovered here on OKP (from the 2016 jazz post iirc). But then realized a Yussef Hayes is on the list and then read this:

"The demise of Yussef Kamaal robbed British music of one its most profound voices, with the group’s debut – and, we suppose, only – record becoming an instant classic in this vortex of fresh jazz innovation."

What the fuck?