So they're saying that the beta isn't the real thing and won’t be the real thing. Well, duh. If they had the real thing they wouldn't call it beta. Isn’t this a complete non-story?
Of course, I'm also skeptical of the tractability of the problem of actual self driving in the full range of conditions humans handle. It might end up one of those unfortunate problems where many different development paths get to 97% but none of them get to 100%.