IIRC It was added because too many people had been hacking together such a feature in their configurations, more often than not compromising their security. They added the option to reduce the amount of damage such a stupid much-asked-for feature deals.
P.S.: Honestly, I have used the feature before. While it’s usually funny, it can be brutal from time to time.
Reminded me of this: https://github.com/jtroo/kanata/issues/595
Same concept, different granularity!