Disabling a command doesn't actually disable it (EssentialsX)

For some reason, even though I added /sell to the list of disabled EssentialsX commands, I can still access it through /essentials:sell.
# Disabling commands here will prevent Essentials handling the command, this will not affect command conflicts.
# You should not have to disable commands used in other plugins, they will automatically get priority.
# See https://bukkit.fandom.com/wiki/Commands.yml#aliases to map commands to other plugins.
disabled-commands:
  - sell
#  - nick
#  - clear

Why? Is there any way for me to fully remove it?
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