I am currently developing some tools that use the vsphere information to configure IP addresses and other vm information. Looking at machines (RHEL7/CENTOS7) using open-vm-tools I see that the GuestStackInfo[] information is mostly there in the vsphere MOB, but it does not hold any of the NetIpRouteConfigInfo which contains important information about the routes as well as the gateway. I'm currently (2/3/15) using the 9.4.10 release available on http://packages.vmware.com/packages/rhel7/x86_64/ on these machines
I have attached screenshot of a working vsphere MOB (using VMware Tools from VMware) and a broken screenshot of open-vm-tools.
Thanks for reporting this. We are aware of this bug and it will get fixed in next release of open-vm-tools.
This issue has been fixed in open-vm-tools version 9.10.0 and 9.10.2 released recently.