Is it a buy order? If yes, then from what I understand it doesn't hurt (but I could be wrong, I'm not a crypto expert).
I have seen buy offers on exchanges for popular coins for much less than they are worth. In general it's just wishful thinking, but sometimes one gets lucky if a whale dumps. The same goes for those trying to sell at a super high price. In general those offers are never filled either.
But I can see your concern about someone potentially holding so much of the supply. Hopefully if any one person gets a massive amount they will distribute at a fair price.
I hope things work out, and you two will be able to have a long and profitable friendship :)
❗