Yep, it's a convenient feature when you need just tap to collect songs in the queue, no matter what list it's from. It saves the time, especially when you do it over and over again, instead of using pop-up options.
You're right, but I use option 'enqueue and stay in the list' from settings 'list item click action'. When I tap on a song in a search list, message 'enqueued' on the screen below appears, but the queue is still the same.