Not really, having a hole in the rules doesn’t mean the rules should be loosened. I don’t even understand how you came to that conclusion.
The rule is „this credit is for you to buy food as a meal“. That means you shouldn’t order stuff to only take home and eat later, and it also means that you shouldn’t order stuff that’s not a meal. I don’t see why this is so hard to understand from the perspective of the employer. If the employer hands out fuel credits for the drive to work, would you say it’s fine to use that to drive to your holiday because hey, I could have used it to needlessly drive circles before coming to work, too, and that would have been even worse?
I think the meal credit thing is a simple concept and if you can’t follow the simple rules and have to order other stuff, you deserve to be fired. It’s not hard to understand.