Yeah as far as I understood their letter they compared bitcoins to private tokens of value (kind of like a private currency) issued by a business like air miles by an airline or something like that.. which as you've implied they will want to regulate and will shut down anyone without a license, just like the letter told the person it was intended to.
It's a two edged sword. Yes they give all businesses under their rule the green light to use bitcoins legally but they also asserted themselves (the small gang of thungs rulling over everyone through violence) to have the authority to regulate any business that deals exclusively with bitcoins which is very very bad.