ProcessZetaSentEvent lacks any validation for the DestinationAddress which could translate in funds loss if sent to invalid address or address(0). I would recommend to use the same logic as in ProcessZRC20WithdrawalEvent which is better implementated, which validate the destination address is not empty and valid.
https://github.com/code-423n4/2023-11-zetachain/blob/main/repos/node/x/crosschain/keeper/evm_hooks.go#L209
