Yes, I think that rule rule should be enforced when correctly apply.
We don't refusal to play against other team, we refusal to sit against one pair playing ilegal bidding methods not allowed in the rules in force, at least till they accept stop doing it and ...
"I was trying to demonstrate that the expected level of play should be very high for the KO stage of a world championship"
IMHO, the expected level of folow the rules in force and the CoC should be very high for the KO stage of a world championship.
"A psychic call which is found on the above basis to be a matter of partnership understanding is disallowed and a score adjustment may be awarded, together with a procedural penalty to the offending side if deemed appropriate."
The request would have been based on this paragraph of WORLD BRIDGE ...
"What I am absolutely sure of: no matter for how long they are banned and when they may come back, they may never again be allowed to play in the German open (or seniors) team. That demands flawless ethical behaviour and that can never be restored after now."
I really ...