When it comes to geopolitics, it is. If Europe truly wants to be a major player in the space-based industries of the 21st century (and also militarily), it needs to secure a fully domestic, modern and affordable launch and spacecraft system of its own. Depending on other powers will only put Europe in a weak position (what's preventing some future Trump-like US president from deciding to block Europe's access to space if Europe can't develop a domestic launch system).