I completely agree it is an advantage and I'm very happy there are options that are mostly Open Source (I say mostly because I'm not a fan of binary drivers, which are often a necessity for decent performance or features).
> Why all-or-nothin?
The parent was citing the existence of a few specific bugs in macOS and Open Source as an alternative (implying it wasn't vulnerable). I really think the "given enough eyeballs, all bugs are shallow" is something Open Source advocates take too much comfort in. The idea does have merit, but there needs to be more study/context to how it plays out in real life.
Another example where this idea fails; there are credible suspicions that the NSA has influenced encryption standards introducing backdoors or known flaws even though the algorithms themselves are publicly known and freely available as well as the implementations.
