I'm disappointed at how many folks here have either taken the absolutist stance "It must be removed or disabled by default" while many others take the opposite absolutist position of "No change needed or desired." Where is the compromise? (Kudos to the several people who have advocated some middle ground).
I read (much of) the bug thread, and see that JohnG (the original bug reporter) did agree to the compromise of having an advisory dialog with instructions for how to disable the feature. The KDE maintainer (Ana) said no, and actually explained why doing this would be somewhat difficult technically, at the package maintainer level.
So in my mind this compromise clearly should be pushed upstream. Oddly, neither the Okular user web page, nor the Okular KDE web page seem to have any links to any sort of bug tracker. So I can't tell what the upstream developers may have said about it.
If a reasonable effort has been made to persuade upstream to compromise, then I guess I would favor Debian taking action. The most reasonable technical action seems to be disabling the option by default. However, the maintainers disagree with that. I'm no Debian expert, but that seems to leave two options: Live with it, or create an alternative package with new maintainers.
It's frustrating when an issue like this is painted in stark black and white, when in reality there seems to be a very reasonable compromise available...and when some folks on each side seem uninterested in being reasonable.