The 2/3 rule is open to abuse if you can get in people who are playing in other champs/qualies, I'm sure I'd have done better last weekend if I'd replaced myself with Luca for example. In a round robin there wouldn't be a problem, just an extra game, all the other teams would still play each other and ranking would be accurate even if a team dropped out as they qualified elsewhere. Swiss would be different as not everyone would play each other and that could skew results as you might beat team A who drop down and team B who you didn't play get through, but if A plays B then maybe A would have won and qualified instead..
Hopefully you can make it and play over here, if not and nik/matt qualify then you could be their 2/3, I guess if you are not playing here then you can sub in Germany too, I think the problem would be playing in 2 champs/qualies, even as a sub. Maybe with your situation this isn't a problem but without a rule like that in place you open up people getting ringers in to qualify.
Obviously this is all my opinion and I'm not actually in charge of anything.
The 2/3 rule is open to abuse if you can get in people who are playing in other champs/qualies, I'm sure I'd have done better last weekend if I'd replaced myself with Luca for example. In a round robin there wouldn't be a problem, just an extra game, all the other teams would still play each other and ranking would be accurate even if a team dropped out as they qualified elsewhere. Swiss would be different as not everyone would play each other and that could skew results as you might beat team A who drop down and team B who you didn't play get through, but if A plays B then maybe A would have won and qualified instead..
Hopefully you can make it and play over here, if not and nik/matt qualify then you could be their 2/3, I guess if you are not playing here then you can sub in Germany too, I think the problem would be playing in 2 champs/qualies, even as a sub. Maybe with your situation this isn't a problem but without a rule like that in place you open up people getting ringers in to qualify.
Obviously this is all my opinion and I'm not actually in charge of anything.