partedUtil that comes with ESXi 6.0 vs gdisk Linux

I just came across an interesting case:
An ESXi 6.0 host with 3 datastores run into a powerfailure.
Result: all 3 partitiontables were blank. partedUtil only displayed an unknown partitiontable type and no partitions at all.
Next I booted into my Linux LiveCD and here all 3 LUNs were displayed with complete and apparently correct partitiontables.
Question: what exactly does partedUtil ?
Does it do some checks on VMFS-volumes and only displays them when additional checks are passed ?
If it does NOT do any additional checks and just reads the MBR or GPT-table then partedUtil must be considered as buggy.
Any ideas ?