I imagine the point being the same as game development in general, hence my agreement on a sibling comment.
Many people, especially those coming from FOSS background, don't understand the game development culture is all about IP.
The culture is to create great experiences, with interesting gameplay, the actual programming languages tend to be whatever everyone uses in the industry, and in general proprietary APIs aren't the drama like in sites as this.
So if an indie is going beyond desktop, trying to maximise sales, they will pick an engine and language that covers them.
Many people, especially those coming from FOSS background, don't understand the game development culture is all about IP.
The culture is to create great experiences, with interesting gameplay, the actual programming languages tend to be whatever everyone uses in the industry, and in general proprietary APIs aren't the drama like in sites as this.
So if an indie is going beyond desktop, trying to maximise sales, they will pick an engine and language that covers them.