I'm not privy to anything special here, but I do get the impression that (intuitively) it's easier to target layoffs in areas with weaker employee protection laws. In most EU countries, it's pretty hard to make these kinds of redundancies without going through a slow and expensive process, as well as paying severance.
Similar to that in finance, where big corporations have the luxury to establish entities in tax heavens and avoid paying large sums while still operating just fine