I think the big reason they actually need to be fixed is because of the way they're tied to companion story progession.
That would be really strong argument indeed ...
Too bad this topic is about expiration of food huh?

//Edit:
As for attitude towards tadpole ... most people will probably dislike what im going to say (again) ...
But i quite honestly dont really think this is important. :-/
You see, there is no universal truth in my honest opinion, no general rule about how our characters should be thinking about their tadpole ... that should be up to us.
Our character can freak out as Shadowheart ... do whatever it takes to get rid of that thing, even if that would mean do whole Act 1 within single Day (read as: Long rest) if that will be necesary.
And i think this is legit approach.
Now here comes that controversial part:
Bcs i believe that our character can also chill like Wyll, Karlach, or Astarion ... simply dont give a shit, or care on more pressing matters ... and rest whenever they want.
And i think that is just as legit approach.
Therefore i simply see no reason in argumenting if our character "should or should not" rest in story perspective ... this is each one of us decision, and im infinitely glad that at least someone in Larian gets it.