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Yes, it is correct, thanks for highlighting this...
There is a "screw cap" on top that you need to open for accesing to key inside (see photo of token 9 with half hologram).
Regarding the website I didn't check other coins but maybe they are still showing "our" tests and not these new with btc test!?
There was a link on test page (currently it is disabled) where we could check address of corresponding serial number of coin. It was available on website
https://satoricoin.com/check-balance-result . I assumed that test coins will be included in final balance checker but it may not be the case.
@ChiBitCTy
There will be two coins, on BTC Prague there was only premium coin exibited (Gi coin), but there will also be Chi coin which will probably be more like old Satori coin. As Motonori in his tweet mentioned that there will be more models(plural) so there is possibility that there will be more than two coins available in the future. Sorry for whole screen screenshot, I was on cell phone and couldn't crop the screen.
And yes I love idea of affordable BTC from vending machine, things like that should be at least in every bigger city.