https://publicknowledge.org/eu-court-when-you-buy-software-you-own-it/
The EU has already taken care of it.
The Court of Justice of the European Union found that acopyright owner exhausts the right of distribution to a copy of a computerprogram once he sells, or authorizes the sale of, the copy. This means that whoever purchased thecomputer program can resell it and the copyright holder cannot control theresale of the copy. The Court found thatthis exhaustion principle applies whether the copy is on a tangible medium likea CD-ROM or DVD or an intangible download from the Internet, and it alsoapplies to corrected and updated programs that the copyright owner sells. Furthermore, the Court made clear that contractclauses that deny the customer the right to transfer his copy of the computerprogram are void.
Yes, like refunds it'll probably get sorted the first time someone's estate with a bit of money tries to will it to someone and then they take Valve to court/make a complaint to the EU.