Your link is for FlexArray Virtualization Installation Requirements and Reference Guide. And this document now in multiple places refers to FlexArray Virtualization Best Practice Guide. See e.g. page 40:
Note:
The supported number of visible array LUNs on an FC initiator port varies according to Data ONTAP release. See the FlexArray Virtualization Best Practices Guide for information about this limit for the release running on your system.
etc etc etc