Hey there,
should all the wheels have been locked one side, for sure the anti-skid system would have prevented an asymmetric braking, thus allowing the aircraft to be fully kept on the runway, by using both rudder and thrust reverser. Besides the normal ABS (Auto Brake System), the A380 also has a BTV (Brake to Vacate System) linked to ABS and BSCU: though can't really figure out what would have happened if the anti-skid were releasing pressure on the brakes while the BTV were intesifying the braking pressure just to vacate by the preselected taxiway ...
Didn't study the A380 but there should be a system logic to prevent this from happening.
Cheers,
fredgrav