You are confusing ABS with stability control.With ABS disabled, I feel like I can control the car a lot better, even the way it slides, I can get it to skid sideways on purpose a bit depending on when I break that threshold of traction, then power out of it when I want.
No modern ABS/SC system ever fully disables ABS. What is is "disabled" is the response to yaw. The ABS is still fully functional (and functioning), but treating the car as if there is no slip angle. This means the car can slide and loop without single wheel intervention. It also reduces the impact of power cuts, if the SC system has integrated that.
My B5 has a crappy early-gen Bosch SC system named ESC. It sucks and I generally turn it off. However, turning that aspect of the system off does not do anything with the ABS behaviour related to stopping. It simply means the ABS pump will not be used to prevent the car from rotating or making forward progress in slippery condtions.
Even the Pedal Dance mode on the BRZ does not disable ABS function. It simply turns off yaw sensing and all related responses.
The only vehicle I own that can have ABS fully disabled is my BMW motorbike, and ABS can be disabled on that because it is a giant overgrown dirt bike, and only in the very last couple of years has ABS programming improved to the point where it might be appropriate to use in very low traction conditions like dirt riding.