The argumentation simply fails when you're aware of the company history, structure and organisation of Topware. Most arguments are based on names and locations. But in the end its only semantics, because this whole labeling business to some point is simply window shopping or due to legal/financial reasons. It doesn't necessarily reflect the structure and organization of a company. Labels are for customers, for better recognition. It doesn't say anything about staff roles, workflow or hierarchy. To make assumptions based on public names is always highly speculative. Also, public perception doesn't always match with reality. There are many companies with subsidiaries in foreign countries that have no distinct labels. In that cases, even when a product is developed and produced completely abroad, in public opinion its still an American product when the company is headquartered in the USA. I worked for a hydro power manufacturer who does his researches in Korea and Scotland, the last one was acquired. But the product is advertised as german engineering quality. How much American are iPhones and Xbox consoles when manufactured completely by a Taiwanese company (Foxconn)?
Reality Pump was founded as Topware Programmy Sp.z.o.o. and, after the bankruptcy of the first Topware and selling to it's successor company Zuxxez (owned by the same people as Topware before), later renamed to Reality Pump. The head honcho of Topware is, at the same time, producer of Raven's Cry. He has always been producer/project coordinator/whatsoever since Reality Pump released under that name, he always took part in the development process. That includes Earth series, KnightShift and Two Worlds. He is Topware's public face, he is the communicator who got quoted from the forums all the time about changes in design and patch notes (e.g. the in/famous 30fps discussion), he was behind lawsuits against a german gaming magazine review and software pirates of Topware products. In the end it is always him, who makes the shots, since 1995.
Reality Pump isn't und has never been an independant subsidiary, it was always under control of its German parent and its management. They came to existence for the simple reason that at the time of the foundation it was cheaper to establish a studio in Poland. RP always developed its games in cooperation with the german offices and did what it was told to do. There might have been a time, when Mirosław Dymek was still Project Lead, they had also a Polish face. But Dymek has left the company, since then you never heard any developer name from RP again. It's always Hassinger.
That's why this whole nationality and responsibility discussion does not lead anywhere. Every RP game is a Topware production from the beginning, no matter where the developer resides. Topware doesn't force anything on Reality Pump, Reality Pump simply is Topware's internal programming department. And every single product is as much Polish as it is German.
BTW: The situation of Bethesda Softworks/Bethesda Game Studios/Zenimax isn't that much different. ZeniMax is simply a holding company, its CEO the same as for Bethesda Softworks (Robert Altmann). Bethesda Game Studios, to my knowledge, isn't even a company, but a name.