It's a different musical world.
That it is. But in truth, a number of factors contributed to the demise of GOOD live bands in clubs, especially the jazz organ based trios/quartets.
1. Only 'Superstars' who can afford roadies are willing to carry a B3 and several Leslies around from venue to venue.
2. Few clubs, especially jazz clubs, are able or willing to pay for these groups on a regular basis.
3. The classic "Jazz organ trio/quartet" of the 60's, 70's, and early 80's, was NEVER that popular except in predominantly Black, jazz-oriented, clubs and even then, only in certain cities like San Francisco, Philadelphia, and Atlantic City. New York seemed to lean more towards traditional (progressive) jazz groups (think Miles, Parker, etc.). In Atlantic City alone during the mid 60's, on any given weekend during the summer, you could hear Wild Bill Davis, 'Brother' Jack McDuff, Don Patterson, Jimmy McGriff, Johnny 'Hammond' Smith, and many other stand-out players (including several White players whose names escape me at the moment) of that era. Asking to 'sit in' was common and was usually just a way of trying to 'gorilla the gig' from the existing group, but produced some 'insane' performances. But I digress......
4. The waning popularity of these groups had the usual effect of producing fewer and fewer quality jazz organists. Most of the current lineup of great players, ie. Tony Monaco, Joey Defrancesco, etc. consider themselves to be 'Torch Bearers', trying to keep that art form alive, and are quick to pay tribute to the 'old masters', especially Jimmy Smith. Whether their efforts will produce a new generation of jazz organist remains to be seen. Let's hope so.
5. Fewer and fewer well-maintained, quality I B3's remain and fewer still technicians to maintain them. Although there are many capable 'Clonewheels' available, none seem to have the 'panache' of the real thing; plus, a new Hammond B3 Mk 11 costs about $25k. But even with the more affordable models, few of todays keyboardist are willing to spring for a dedicated clone, especially if they need additional non-organ sounds.
So, enjoy the performances like the one posted. You probably won't be able to see them much longer. Sad.
chas