They're already following realpolitik by keeping coordination between the two countries active.
The problem with Soyuz is that you no longer have a usable escape plan up on the ISS once it's used so it should only be used in a true emergency. If the Boeing module really was bad, better to send up a Dragon and send the Boeing module down unmanned than to use Soyuz.
The problem with Soyuz is that you no longer have a usable escape plan up on the ISS once it's used so it should only be used in a true emergency. If the Boeing module really was bad, better to send up a Dragon and send the Boeing module down unmanned than to use Soyuz.