99% users won’t ever need that. For cases when they do, they can find guides, modify settings or install software that does what they want.
You could make the same excuse for Windows.
Any distro you download can do this exact thing and you wouldn’t know for a long period, unless you spend enough time to compile the whole thing yourself, compare and research.
You don't have to compile to know this. You can find the list of fully free distros here: https://www.gnu.org/distros/free-distros.html . Debian removes those blobs too, but it's not on that list for other reasons.
I consider myself knowledgeable but you surely chose a wrong example to teach people about DRM. Try some denuvo or eac maybe.
That's DRM too and there are many more examples. Blu-ray also contains DRM. And so do most PC games thanks to Valve. Console games on the other hand usually don't have DRM when you buy a physical copy.
Whatever that means, users don’t care about it. Compared to others, Valve provides a lot more value in most of their solutions. They are hackable just enough to satisfy most enthusiasts.
I know that most people don't care about their freedom, privacy or security. Most people use Windows. But this doesn't stop us from trying to build a better world for ourselves and to try to convince others to care.
Why do companies make proprietary software and operating systems at all? Because they think it will make them the most money. Why is Steam proprietary? Why is Valve keeping secrets from their users? They could do the ethical thing and make it Free Software.
Making proprietary software is already unethical by itself, because users can't control it. They already do other malicious things like restrict their users with DRM. I'm glad that Valve, Microsoft and other companies contribute to Free Software. They deserve to be praised for this, but it shouldn't distract us from the evil things they do, which we should criticize. Why can't we praise Valve for the good things and criticize them for the bad things?
Steam is part of SteamOS, so I criticize both.
For me personally it doesn't matter, because I will never use such system. But I want other people to have freedom, I want to live in a free society. For that to happen we must destroy proprietary software, not include it in our distros and pretend that nothing is wrong. I don't want to see people spied on, restricted by DRM and abused in other ways. That's wrong, so we have to talk about it and show people that it doesn't have to be like this.