This is exactly the service that I would imagine other gamers would want, as well. It seems almost petty to torrent when this is available.
I really do not want a world like mobile gaming where every game is free and designed to make you addicted to buy virtual coins.
Games cost a lot of money to make.
Even if all professional game designers/programmers/artists stopped getting paid and quit, people would still make and enjoy free games, and they would probably much better than whatever generic crap is greenlight by publishers.
So I don't believe that the artistic value nor the quality of video games depends on the success video game industry, In fact I would say they are orthagonal to each other.
There are mods that are better than the games themselves, but making the base game is what costs money and nobody does for free.