Correct, this needs to be taken up with the club. Collingwood is the away team and I'm hearing they have set seats (maybe several thousand) at the city end.
This takes away from Richmond's allocation as the home team. But with reduced capacity, not everyone can get tickets. yes, pies should not have any priority anywhere due to reduced capacity.
My suggestion was just an option (last resort) if no further tickets are available through the ballot and for some reason do appear today at 1pm "general admission".