Yes, it is. Keeping Steam growing and well-liked is an achievement in itself. They never really stood still with it.
Steam certainly challenged the status quo when it was released, and several times in its life.
Hell, who else is working on Linux gaming right now? They were relatively early on game streaming, VR. Steam Workshop? How cool is it that a large amount of one of their flagship games, Team Fortress 2, not only integrated a lot of third party content, but also paid creators back? How cool is it that many games like Counter Strike began as Half Life mods?
I don’t really use Steam much anymore, so it’s not that I’m personally attached much, but I will admit to being pretty impressed.
Most Startups are at least trying to change the status quo.