It's just that if I (suddenly) :D lose to De Luxe, it will create an awkward situation. My game with Alex will not be legitimate because De Luxe would have to play against him in that case.
The current situation is not described in the rules, and I don't remember any precedents, so I had to come up with a solution on the fly, and the proposed option seems to me to be the most fair. I hope this will not affect the top 8 list.