I suspect that bitundo is mistaken.
An orphan one block deep might still be possible to overcome. An orphan 2 blocks deep would be very difficult to overcome.
This transaction is now 14 blocks deep. Unless bitundo has access to more than 50% of the total global hash power, the odds that they can undo this transaction are less than 0.0001%.
As has been pointed out it won't hurt to try, but don't get your hopes up.