This is not a YouTube problem or a live sports problem, it's just that a video player's progress bar spoils results of recorded games.
A thoughtful production team could add a "spoiler block" to the ending of short matches, like here: https://youtu.be/IGaG3X_-CIM?si=PIwmn8Phgnq2kUMM&t=1220
Or the community could create a spolier-free viewing site, like here: https://vods.co/melee?event=27501
This is not a YouTube problem or a live sports problem, it's just that a video player's progress bar spoils results of recorded games.
A thoughtful production team could add a "spoiler block" to the ending of short matches, like here: https://youtu.be/IGaG3X_-CIM?si=PIwmn8Phgnq2kUMM&t=1220
Or the community could create a spolier-free viewing site, like here: https://vods.co/melee?event=27501