You would also have drawn the ire of users who specifically put that in as a unique feature as part of their interpretation in the brief, so I’m rather glad you didn’t.
That said while I said in OP that the conditions of buying were subjective as it is in real life, I should remind everybody that Automation represents an interface between fantasy and reality: it can reflect it but also subvert it. The fairest way to go about this is to at least convey how true to life you want to be in each round. I don’t think this has truly been explicitly stated in most precious rounds hence a bit of wiggle room for confusion and saltiness. There’s no need for a hard rule on it, but just saying for future hosts.