I agree, the existence of this commercial niche IS interesting. I guess Pharoah Sanders, Alice Coltrane, McCoy Tyner, Elvin Jones, and the Mwandishi musicians undersupplied the market!
I’ve also listened to some of the more recent recordings in this vein. They’re fun but also mostly empty calories.
What about Ray Charles, Horace Silver, Jimmy Smith, Cannonball Adderley, Bobby Timmons?
I think it’s interesting and a little odd that many discussions of spiritual jazz almost entirely discount music that was heavily influenced by the Black American church.