I happen to know more about this deal than most.
My seller was briefly in escrow with this buyer.
It is pretty unlikely that the buyer was pulling anything weird.
I also know the agent personally.
I consider it highly unlikely that any of the players in this deal are up to shenanigans.
Often there are factors that are not obvious on public lookup sites that play a part.

For example, Lending:
A cash buyer (the most desirable buyer) on a beate up short sale (the least desirable seller) can often work magic on lowering the price. The reverse can also be true.

To be more specific, you should contact the buyer’s agent.