to hook or not to hook

[pelf]

The PAPERDOLL_STATINFO table has a table with an updateFunc for each player stat key.

I wanted to replace the behavior for armor, so I just created another update function with the modifications I wanted and assigned it, overwriting the old value:

PAPERDOLL_STATINFO["ARMOR"].updateFunc = theNewFunc
PaperDollFrame_UpdateStats() -- I called this afterward to force an update.

This code has been running in my UI for weeks now. I was looking into pulling it out of _DevPad and putting it into a standalone addon; so, I was doing some research into how other addons modify the stat tooltips. I found one addon that includes, as a side feature, the changes I made to the armor tooltip. Our implementations were nearly identical, except they do this:

hooksecurefunc(
	PAPERDOLL_STATINFO["ARMOR"],
	"updateFunc",
	function (statFrame, unit)
		
		-- ...

		statFrame:HookScript("OnEnter", Armor_OnEnter)
	end
)

So, is it necessary to do a secure hook here?