The bottom line is, no matter how many countermeasure I(we) take, OPM will always depend on the accuracy of the description given by package maintainers, which is incomplete in many cases.
So, this is better do not receive a package, if it is incomplete.
So what would be a complete package? One that has been tested on all architectures, all OSes, previous, current, next and trunk versions of both FPC and LAZ, including all combinations? No, I do not think that package authors are willing to do that. Instead, I would rather like to see OPM collecting anonymous statistics about package installations from all users (failed/succeeded packages installations for each arch/os/fpc/laz combo), and then showing my combo stats to me to see. Then I can decide if I want to proceed with package installation or not. After package is updated, statistics are either reset, or even better kept for current and previous package version.
Heh, dreaming is free, right?