The rule against gyros and other driver aids has been in place with Roar and Ifmar for some time I believe. If I remember correctly it goes back to the early-mid '90s when Schumacher brought a traction control setup to a Worlds. Not disabling it, having it capable of being turned on from the radio, would likely not be considered acceptable.
From the Roar rules:
5.2.3
The use of traction control sensing devices, active suspension devices, and
steering control devices aided by gyroscopes or accelerometers (G-force
sensors) of any kind is strictly prohibited. Sensors may be used for the purpose of passive data recording but not for adjusting the performance of the vehicle while in motion.