What Tim said! ACP's reaction is IMO justified, sensible and ultimately in the interests of Swiss riders intending to ride PBP while not affecting those who don't. Better to have this decision taken now than in May when it would be too late for the Swiss to find other rides (though it's already going to be difficult, I'm sure). Even if ACP did not excommunicate the Swiss organisation, it wouldn't help those Swiss riders - because the whole problem, AIUI, is that ACP don't know who they are.
However, the Swiss website LWaB linked to upthread is still displaying "Qualifikation für das Race Across America (RAAM)
Brevets des Randonneurs Mondiaux". It strikes me I'm not sure what the relationship is between BRM and ACP. I thought BRM homologation meant, and was invented so that, an event counted as a qualifier for PBP?