Skript Can't cancel endermite spawning?

Skript/Server Version

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[16:45:00 INFO]: [Skript] Server Version: 1.21-2276-72ccfbd (MC: 1.21)
[16:45:00 INFO]: [Skript] Skript Version: 2.9.0 (skriptlang-github)
[16:45:00 INFO]: [Skript] Installed Skript Addons:
[16:45:00 INFO]: [Skript]  - skript-placeholders v1.6.0 (https://github.com/APickledWalrus/skript-placeholders)
[16:45:00 INFO]: [Skript]  - skript-gui v1.3 (https://github.com/APickledWalrus/skript-gui)
[16:45:00 INFO]: [Skript]  - skript-yaml v1.5
[16:45:00 INFO]: [Skript]  - MongoSK v2.3.2 (https://github.com/Romitou/MongoSK)
[16:45:00 INFO]: [Skript]  - skript-reflect v2.5.1 (https://github.com/SkriptLang/skript-reflect)
[16:45:00 INFO]: [Skript]  - skript-db v1.3.9
[16:45:00 INFO]: [Skript]  - SkJson v4.0.1
[16:45:00 INFO]: [Skript]  - SkBee v3.5.8 (https://github.com/ShaneBeee/SkBee)
[16:45:00 INFO]: [Skript]  - PoaSkRewritev2 v4.7.3 (https://github.com/Ekpoa/PoaSkRewritev2)
[16:45:00 INFO]: [Skript]  - ItemsAdder v4.0.2-alpha-test-3 (devs.beer)
[16:45:00 INFO]: [Skript] Installed dependencies:
[16:45:00 INFO]: [Skript]  - Vault v1.7.3-b131
[16:45:00 INFO]: [Skript]  - WorldGuard v7.0.11-beta1+a801a9d

Bug Description

You can't cancel the spawning of ender mites, but you can cancel the spawning of mobs due to natural causes (I know that the spawning of ender mites is not due to natural causes)

Expected Behavior

As well as canceling natural spawning, using an ender pearl will prevent endermites from spawning.

Steps to Reproduce

on spawn:
    log "%event-spawnreason% | %event-entity%"
    if event-entity is endermite:
        log "spawn endermite"#no effect in log
        cancel event