Command /random gives chat output even when command output is turned off

When using the command '/random', the command still gives an output in chat, even if the gamerules 'logAdminCommands' or 'commandBlockOutput' are set to false.

 

Example Video:

https://drive.google.com/file/d/1L9ikypuQoFGwIONqw7Qfn0059_8hr66-/view?usp=sharing