Childish? Yes. Understandable? Also yes. Don't forget defeating DRM for ethical purposes is a grey area. Maybe even illegal. Example: those trains in Poland

Childish? Yes. Understandable? Also yes. Don't forget defeating DRM for ethical purposes is a grey area. Maybe even illegal. Example: those trains in Poland [referred in the article]. I think what the company did by contracting the hardware hackers to investigate (by RE) what was going on was illegal, and what they did was illegal too. What if they hadn't? The company would have lost the support contract. The law is out of sync with morals and what's better for society. So, while not recommended, the tone is acceptable or, at least, understandable.