Sheldor,That's certainly possible. In fact, there are limitless misunderstandings/misinterpretations/inaccuracies that would make the information useless.
But, if CBS has, indeed, agreed to foot the bill for flying all of Sierra's family to Los Angeles for the Finale, I really don't think that it is something that they've agreed to do for all of this Season's families:
If accurate, Sierra's mother's attempt to explain away the perk as a norm for every Surivor player just doesn't seem plausible.
G