PortalCreateEvent not called for Players when going to the End

[Trigary]

What behaviour is expected:

PortalCreateEvent to be called when going to the End from the Overworld as a Player, if the portal spawn area (obsidian floor with airspace above it) indeed gets reset.

What behaviour is observed:

The portal spawn area gets reset, but the event isn't called.
The event does get called for non-player entities, eg. dropped item, falling block, zombie.

Steps/models to reproduce:

• Use some "logging" plugin: listen to PortalCreateEvent and print/broadcast
• Drop an item into the end portal, notice how the event got fired
• Go to the end through a portal, notice how the event wasn't fired
• Place some blocks inside the portal spawn area
• Return to the overworld
• Enter the end again through a portal
• Notice how your previously placed blocks are gone, but the even wasn't fired

Plugin list:

Just the "logging" plugin / NA.

Paper version:

[02:18:47 INFO]: This server is running Paper version git-Paper-"13a476e15" (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
[02:18:47 INFO]: Checking version, please wait...
[02:18:47 INFO]: Previous version: git-Paper-"d4dcc1a2e" (MC: 1.16.5)
[02:18:47 INFO]: You are running the latest version

Anything else:

EntityPortalExitEvent is also broken: #5174