The Hammond organ, by its very nature, is a very unforgiving instrument. You have to control the volume with a pedal and you have zero touch sensitivity. I think a lot of organ players gravitate towards chorale because it “softens” the attack somewhat and it is far more forgiving when it comes to making your lines sound in time.
With chorale, however, you sacrifice a strong, direct sound. It’s all a little washy. That’s what jazz greats like Joey D, Jimmy Smith, etc. most often played with the Leslie on “stop.” Your lines cut through much better - more like a horn player. It takes a lot of practice to sound good with the Leslie on “stop.”