That may be true, but it's unrelated to what's happening here. If you've ever seen a "there was a problem with this page" bar appear, that was a Safari process

That may be true, but it's unrelated to what's happening here. If you've ever seen a "there was a problem with this page" bar appear, that was a Safari process crashing without bringing down the system (or even the browser UI process). The crash here is happening at a lower level.