There is at least two entangled issues there, the first one is a human resource issue, and the second one is a legal issue. I got the feeling the person asking

There is at least two entangled issues there, the first one is a human resource issue, and the second one is a legal issue. I got the feeling the person asking the question does not really understand what GPL entails. We lack some context but I am not sure that actually releasing the modified source code to their customer might sink the company. Likely a customer is buying a device or some code but also some expertise and support for future version, some client might try to use the modified version, but I am not sure this would be the majority of the cases in the real world.