Norway is part of the EEA, and thus part of the single European market. Norway (along with Iceland) is also covered by the US-EU open skies agreement. So nothing in the video reveals anything sinister by Norwegian. Companies within the EU/EEA can do business anywhere within the EU/EEA, so Norwegian setting up subsidiaries in other EU/EEA countries is not shady, sinister or anything of the sort. Many businesses in Europe do the same thing and in fact is a quite common practice. There is even precedent for European legacy airlines doing the same thing, as SAS was divided into four independent companies in 2004 (SAS Sweden, SAS Denmark, SAS Braathens, and SAS International), all with separate AOCs, and all operating under the SAS brand, until being re-merged five years later.