No, you pretty much have hit the nail on the head.
The only item I would clarify is that unless SIAF is a scam, there is little to no chance that the SEC would reject SIAF's registration.
On the other hand, the SEC can continue to send SIAF questions/comments until they feel confident that all i's are dotted, t's crossed, and your grandmother has all of the information she needs to make a sound decision on whether to invest in Sino Agro Food.
At least, to the best of her ability.