I always passed on using aquafaba outside of baking, thinking it was too fussy. Then I blended a bit into a simple bean spread last week, and it made everything so smooth. Your mileage may vary, but it's a nice little win for quick fixes.
My last batch of hummus turned out gluey until I added a spoonful of aquafaba. It's that same smooth texture you mentioned. Blending chickpeas into soup sounds smart, but I worry about it getting too thick. I get the fussiness fear, but small tweaks like this save dinner. Now my beans have a secret weapon.