Just to be clear, "LCD panel" is the display on the back or the "dashboard" on top?
UPDATE: User manual (p 21) says panel is the top display.
So, if this happens to be on when you happen to be shooting in the dark...One workaround would be to use the Quick menu?
But really, I believe Canon in this case, that the effect is negligible.
But this issue goes ALL THE WAY BACK to within the first few months of the 5DIII's release, right? And the fix with black electrical tape?
PS Thank you CR, for posting this advisory. Canon did not alert me or friends who have a paid CPS account.