Sorry, you're wrong from a vehicle control and engineering standpoint. Stability control is any system that increases the control and behavior of the vehicle. ABS systems specifically increase control of the braking AND every traction / stability control system uses the ABS subsystem specifically to monitor and control wheel speed, in addition to other sensors and controls. Even in the ignorant way you tie EFI into stability control, you are wrong for trying to be obtuse and correct; throttle, fuel, and timing are all used by stability control systems to meter power output.
Many cars made as far back as the last 10 years don't even have a conventional dedicated ABS system in the manner you are implying. The pumps, solenoids, and wheel sensors are similar to older designs, but the control logic is entirely built in the stability / traction control logic and the original ABS algorithms are just minor functions. The fact that there are per wheel solenoids to pulse the brakes pretty well describe a traction control / stability control role rather than just ABS.