Andreas made a bit of a mess by ignoring the dependency expressed in the C1 rules. In German, the dependency is still maintained in C2, but it seems that the English wording became fuzzier and "Then..." is weaker than "Additionally,..." or "Then, if you did the placement,...", that is what the original rules meant.
I discussed this issue again with Kettelfish who confirmed the rules in C2 are the same as in C1 in this case.