Well, went through about 2+ hours of "looking around", they ended up asking me for a log bundle from both the vCenter appliance and the host that is involved - since then (which was Monday), no updates via email nor phone yet.
For vCenter I really question the need to replace all 7 certs - as I have mentioned above, the minute you run "vpxd_servicecfg certificate change", your vCenter appliance should already be supplying the new certs over port 5480 (appliance management) or 9443 (vSphere web client). The rest in my opinion is just aesthetics as I couldn't see how changing the "front end" cert requires the changing of all those other "back end" certs. Unless of course, some other thing will actually stop working (which shouldn't be a surprise by now)
My guess is that the appliance was made due to the demand for a non-Windows centric solution as historically, the management software suite was Windows-based, and it's so drastically different that it's still going through growing pains. Hopefully VMware won't abandon the non-Windows stream