No, not this one.
This also got to do with it: If addons use a manual posthook by overwriting inventory functions and calling their code afterwards they will teint the code and make it insecure.
But this can be fixed by using SecurePostHook now. The devs need to check their addons, but I'd do it after the patch of ZOs which fixes the Inventory:UpdateList stuff. You can then be sure it throws error messages "as intended" whereas now you cannot be sure as it could be the ZOs code bug.
The line you have quoted is just an update to SecurePostHook so it supports metatables properly, which we found out at the crafting tables refine inventory e.g.
I relate to this info from ZOs:
https://www.esoui.com/forums/showpos...95&postcount=7