In this situation, are you obliged to allow passengers to exit the tram that stopped at the tram stop?

Yes, you must stop the vehicle without fail. The video shows that the tram has stopped at a stop without a designated passenger island, which means that alighting and boarding passengers will be on the carriageway. According to Art. 26 para. 6 of the Road Traffic Act, in such a situation, the driver of a vehicle is obliged to stop to allow pedestrians to safely reach the tram or the pavement.