I agree with you, it's a distinction worth making. The software makes money and then releases software as GPL after it has stopped making money. The GPL'd engin

I agree with you, it's a distinction worth making. The software makes money and then releases software as GPL after it has stopped making money. The GPL'd engines have had a secondary influence, increasing demand for future licences of his engine technology. So the act has made them money, just not as their primary source of income. It's not completely tangential to the way the company makes money.