Mm, I had a feeling that was the case... still pretty sucky all the same.
With regards to the play button - I do both. The three buttons on the right side of my 9320 - the top can increase volume, the lower decrease, and the middle, if I press it once, it will stop the music, and if I click it again, it goes to the next track... whereas on the BB music player, one click: pause, second click: play. There just isn't an option on the Spotify app to alter how it reacts to this button being pressed, unfortunately.
But to clarify, even if I use the touchpad to click the pause button, it does exactly the same - stops, and when clicked again, goes on to the next track.