Whatever the naming convention, this forum documents how confusing the original and current convention has been for many newcomers. When such features were introduced it took me awhile to “get” it. Once I got it, I had it, but the terminology was definitely a barrier to understanding rather than a help.
Playing techniques connect with the Score in Write Mode. Playback playing techniques connect with Play Mode. Perhaps something like Score Techniques and Play Techniques makes sense.
I’m sure in the bustle and history of developing Dorico the current names were useful for the programmers, and Lord knows there was plenty of bustle and an endless array of tasks for the team to complete.
The problem now is that the current terms have been used for so long that a change might only add to the confusion and make necessary a thorough review of documentation, as well as make obsolete the terminology in any videos or third party references.