"...
2.3 VIB Installation Methods
As mentioned a number of times already, please note that with the release of ESXi
6.0U1, the health check VIB is bundled with ESXi. Therefore there is no need to push
out the VIB from vCenter server, which is still a necessary step with ESXi 6.0.
..." pg 21
I have already rolled out the updates to ESXi via the VIBs. The health check plug in was installed, but this check in the vCenter GUI won't detect it's already there. This is similar to what I went through in vs 6.0.0, except I had installed the health check plugin separately.