Description of problem:

The following description in doc[1] is incorrect: control plane nodes must be able to reach vCenter on port 443, but ESXi hosts are not required.

If you use a firewall, you confirmed with the administrator that port 443 is accessible.
Control plane nodes must be able to reach vCenter and ESXi hosts on port 443 for the installation to succeed. 

If it is needed to allow traffic to ESXi hosts, it means we have to configure its name resolution and update communication policies every time a new host is added. Remove unnecessary prerequisites to reduce customer effort.

[1] https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/installing_on_vmware_vsphere/installer-provisioned-infrastructure#prerequisites_installing-vsphere-installer-provisioned_installing-vsphere-installer-provisioned

Version-Release number of selected component (if applicable):

4.19