That depends on how the transcription software is written. Are swear words filtered out or are they just never in the system's vocabulary in the first place? I assumed the latter, but fair enough point. It is possible my categorization needs more thought.

Regardless, there is in my opinion a clear distinction in sophistication between a filter and something that triggers a timed action. And that was really what my original comment was about, this feature's elevated sophistication is a conscious reminder of Google's capabilities. Normally that is out of sight and out of mind which is probably better for Google.