It's a comparison they are directly inviting, by constantly claiming it's decentralized. And then its defenders get upset when people rightfully point out that there is only a single instance, because that single instance going down takes the whole thing down. Like in Google Reader.
If atproto app goes down and it’s open source, anyone can put it back up with all public data intact.
Even if it’s not open source, anyone who wants to write the code can still get it back up with all public data intact.
I think it’s a substantial difference with “takes the whole thing down”. Can we acknowledge that?