I still wish they'd allow disabling the ability to scrub playing music/podcast timeline on the locked lockscreen as well, as I seem to regularly seek to random positions in whatever's playing with my phone in my pockets and when trying to grasp my phone to get it out (in coats with larger pockets), meaning I often miss bits of podcasts or have to repeat them as the position randomly skips.
Especially with Face unlock, I don't really see why you'd want to scrub/seek playing music without unlocking, but maybe someone does, but at least adding an option to control that would be nice...