[zork]

AftermathUI.func is

function () return end

Just for notice. Thus I'm going to try

for _, v in pairs({
    CompactUnitFrame_UpdateVisible, CompactUnitFrame_UpdateAll, --PetFrame_Update,
}) do
    v = function() return end
end
 
for _, v in pairs({
    _G["CompactRaidFrameContainer"], --_G["TutorialFrame"],
}) do
    v:UnregisterAllEvents()
    v.Show = function() return end
    v:Hide()
end

But it is hard to believe that rewriting Blizzard functions and not hooking them secures does not give you taints.
The best solution I found so far for secure hiding is:

local hideMe = function(self)
  self:Hide()
end
hooksecurefunc(obj, "Show", hideMe)