Where do you get that info? I can see first transaction that went through with some Ether is May-02-2017 04:01:03 PM +UTC which is after 1 minute not before 5-8 minute of 16 GMT.
You can check here
https://etherscan.io/tx/0x7f414c849a74122219a040115d6beab782c7bfefe5ccd66624eb23619aaa0eb5


If you are talking about this transaction https://etherscan.io/tx/0xb27b78571a3f40382014c987d962c5ad8c1e148a5aa493814694cb1df634d073

there you can see value is 0 ether. May be dev are testing something ....