I had a Toyota Prado Kakadu with electronic traction control. At it's most simplistic it operated as follows: When a braked wheel was about to stop rotating, the brake was released. When a driven wheel was about to lose traction and spin, the brake was applied. And the three differentials allowed for full slip so that all torque could theoretically be directed to a single wheel with traction if that's all you had. This system worked brilliantly except in one condition: where ALL wheels were slipping/locking, you got a much worse outcome than you could have achieved without the system. Good tests for the ALB were on wet long-blade grass - the system could not find a braking pattern that resulted in any speed retardation. And in soft sand the system would end up braking all four wheels to ensure you could not go anywhere! They later developed manual override to avoid the bad outcomes but you had to tell the system that you were in that context - it could not self-detect the conditions as I believe the Audi e-Quattro system can. The e-Quattro system has the advantage of not needing a centre differential so it can be even more mechanically efficient compared to the complex Prado transmission including low range.