Re: Enhancements to "minor-mode-map-alist" functionality.

[Richard Stallman]

    The problem with this approach is that -- in some cases --
    a subsequent post-command-hook function or another external
    event may change the state [notably clear the mark active state]
    so my state variables no longer contain the proper values.

Hmm.  What sort of external event deactivates the mark?
What package has a post-command-hook function that deactivates the mark?

    I still belive evalling those expressions when the keymaps are used is
    preferable (safer, simpler and more logical) rather than doing it in the
    post-command-hook.

All in all, if the post-command-hook works, I think that is simpler.
However, if making the post-command-hook work requires added complexity,
that could tip the scales in favor of some other solution.