> 2) simple feelings of being left out...that's what people don't like about Google shuttles. They're mysterious. Let people in them, see what they are, see how they're really not that amazing or great: but then that would hurt recruiting.

Those buses are private, and paid for by Google, they're not public buses. Should I let anyone from SF ride in my personal car, just so they don't feel left out? Private means private, Google&co are allowed to let in (or keep out) anyone they want on buses they pay for.