The 7 Series families, including the Zynq-7000 SoCs, were not designed to be resistant to physical attacks. In the case where physical access and physical modification of the board is required to perform this attack, then the overall security profile of the Zynq-7000 does not change.
However, in cases where the SD boot image could be modified remotely, then the overall security profile of the Zynq-7000 device is weakened.