They don't do QA, and their 'deploy process' takes everything down for hours. It's embarrassing.
This reminded me of this classic: https://engineering.riotgames.com/news/automated-testing-lea...
Sounds like Riot have a good head on their shoulders about how to handle testing games.
If you come from a different domain, it's important to realize that testing games is much more difficult than testing a lot of other types of software. And much like other kinds of software, when it's done well it looks easy.
I mean, what did you expect?
After that, he moved on to making his own game with a supporting development company fully centered around his ideas at his direction with creative freedom that was not limited with being a mod (ARMA 2/3) or under the restraints of a larger company (SOE/Daybreak with H1Z1).
Brendan is largely the progenitor of the video game battle royale mode, and his name carries a lot of weight in the genre itself.