PC gaming has been the most competitive and consumer beneficial software platform by an absurd margin for a long time now. I'm sure we can attribute at least some of this to the freedom of the market?
For people like (excuse my bluntness) us hacker news types sure. I can make a case that for a large chunk of the population this is not true - consoles are popular because people don't want to have to deal with the added complexity that came from "freedom".
If Epic wins, any user who wanted a walled garden (e.g. iOS) rather than open (e.g. Android) will be deprived of that choice. Ultimately, having looked into this quite a bit, I think this boils down to a debate whether the walled garden business model should be legal.