That is still a no go. I have done as articles suggested.
I created an account in AD: ssospn (part of domain users ONLY)
followed the second article and updated the account accordingly
Was able to add AD as identity source and set it as default.
Went to vCenter permissions and browsed my AD Domain and chose the account of: esxiadmin (which i have created for managing vcenter)
I still get the same message: Cannot Parse Group Information.