Programming languages or platforms aren't the issue. Software packaging and distribution is. Porting is easy. Getting your software to users is hard.
Look at the Minecraft pocket edition (and its Windows 10 respin), one of the devs said that it would be trivial to port that to desktop Linux but they would have to set up their own payment and distribution system, which just isn't worth it for that tiny market.
Github, Gitlab, Bitbucket, it would be great if these platforms had an option to allow non-technically users to install software from them. It would eliminate the need for developers to push to a software platform.
Look at the Minecraft pocket edition (and its Windows 10 respin), one of the devs said that it would be trivial to port that to desktop Linux but they would have to set up their own payment and distribution system, which just isn't worth it for that tiny market.