Your thinking is so pinned-down by business-centric presumptions it’s ridiculous.
The Law doesn’t give a shit about any one company’s chosen business model, otherwise Murder would be legal as long as it was done by employees of an incorporated “Murdering Services” company.
Further, Facebook is an American company which avoids tax like crazy, so in Europe even politicians don’t give a shit about their business model, which means these Laws were not even adjusted to account for Facebook’s business model when they were created.
Facebook’s business model and even survival as a company are wholly irrelevant: the Law is the Law, and Facebook either obbey it or they stop operating in the Jurisdictions whose laws they don’t want to obbey - ultimatelly, all legal recourses exhausted, “comply” or “leave” are their only two options.