Actually it is entirely legal and for good reasons. WG owns the content of the game. They made the 3D models on the ships, the textures, everything. It's their property. You're just licensing the content for your use in the game (that's why it's called an End User Licensing Agreement). Ownership means they can commercially use the content. Which you as a player can't, because it's none of your work. It's basically just a roundabout paragraph about their copyrights with the added bit of don't try selling your account.
You should also be aware that the EU version of WG's EULA is far less invasive on the other hotly debated topics. In fact none of the paragraphs you quoted are present in the EU version of the EULA.
You can read the EU EULA here.