It is always entertaining to watch non-contributors opine about completely obvious solutions that the devs are silly to have overlooked.

The interesting thing about bitcoin is its organic nature.  The bitcoin codebase, warts and all, was dumped into the Internet's collective lap.  Reality does not give anyone a chance to pause, wait for a specification to be polished, to wait for every single edge case to be tested (if that were even possible), etc.

Almost half a billion dollars in market cap, and the dev team is still largely unpaid volunteers, trailing behind events, cleaning up the messes reality leaves behind.