Wouldn't Jabba being 'stupid as fuck' and making erroneous claims about nature be the less convoluted answer here? Bioengineering, canon or not, sounds like the more complicated explanation.
Sarlac that lost the ability to grow 'roots' and instead worked out venom and energy storage (fat and muscle) would outcompete and supplant the sarlacs still producing energetically-expensive, overly-complicated stasis bellies.
What happens if they momentarily fail to keep their meals alive, do they starve or become poisoned by the rotting meat?
Do they have issues keeping a varied diet alive?
How do they maintain a net positive energy balance after producing all that is required to keep organisms alive?
Why not stun them and stash them, like wasps and spiders?
Why not fatten up like -gestures broadly at all life-.
Fat requires very little maintenance.
Could one, in theory, rescue one's friends were they trapped in a sarlac?
Sounds like an organism that would quickly be out of business were there any competition at all.
edit: How do they handle the waste produced by the meals-in-stasis?
Shane Black and Tony Scott both expressed dissatisfaction with the final film, and said in later years how the original script was far better. Scott accused Joel Silver of interfering with the production and swore off working with the producer again. His next film, True Romance, features an unflattering film producer character patterned after Silver.
Sabo said he was motivated to post the signs because of reports that a Venezuelan gang forced the closure of an apartment complex in Aurora. The City of Aurora and Aurora Police have said the closure was not due to gang activity but rather years of neglect by a landlord now facing charges for neglect of the property.
So not only is he fond of bolting hate lies to city infrastructure, he also claims to be motivated by hate lies from some stupid conspiracy theory. Garbage in, garbage out.
I want to know if he has any connections to the neglectful landlord.
Also, can we focus on that landlord for a moment? Invented a story to blame immigrants because the lack of maintenance needed a cover-up.
Give that property to the tenants; they would take better care of it.
How does one 'swamp for' a trucker? What new devilry is this?