There's a difference between spin TESTING - where you basically don't know what might happen, and need things like a recovery chute for the worst case scenario - and spin TRAINING - where the characteristics of the airframe are known and understood and it's the pilot that is the thing being studied, not the aircraft. ZA101, as a company test aircraft, was used for the former; ETPS is concerned with the latter, so I'd be somewhat surprised to find their aircraft fitted with an anti spin chute, any more than any of the RAF's training aircraft.