Why was Attack on Titan episode 87 (Season 4 finale) delayed

The season 4 finale of Attack on Titan (episode 87, The Dawn of Humanity) is to be delayed in both Japan and internationally for online streaming, but why?

Attack on Titan episode 87 is delayed – and fans think it's

When will Episode 17 of Attack on Titan's final season be released

Final episode of part 2 going get delayed for 1week. : r

When Does Part 3 of 'Attack on Titan's' Final Season Air?

Attack on Titan Season 4 Will Take a Break This Week

Attack on Titan: The Final Season - Part 2

Attack on Titan – The Final Season (Episodes 76 – 87) Review

Attack on Titan Episode 87 Broadcast Delayed to April 3 - Anime Corner

Attack on Titan Episode 87 Release Date Delayed, New Date

Attack on Titan Season 4 Finale Release Date Delayed By 1 Week