The idea was that interconnected controls [rudder and aileron] would be MORE INTUITIVE, safer and simpler to fly. With a yoke similar to a steering wheel on a car and a single brake pedal on the floor, also like a car, the intent was to simplify flying and make it more appealing to average people who already knew how to drive a car. With interconnected rudder and aileron, cross-controlling [a contributor to spins] wasn't possible. With limited elevator authority, it was also difficult to stall - the aerodynamic stall being the other ingredient of the spin. If an aircraft couldn't spin, it would be much safer.
To sum up, ostensibly simpler, more intuitive to the novice, and safer was a powerful marketing approach.