it can depend on the vehicle if you want to use non OEM parts for the sensors. If we were talking about my 94 Jeep Grand Cherokee, I would strongly disagree with you about non Mopar sensors since I have read too many stories of people buying a new non Mopar sensor and from the factory it didn't meet spec. But that is in a car that has little fault tolerance to how the voltage of a sensor works.

In the aveo it can be different you will need more opinion of people around here to know how it reacts to different sensors.

As far as parts go I don't blame people for using different parts and they can often be as good or better than factory ones