Sometimes, when editing an embedded AE comp in a PPro timeline, I want something (a layer's in-point, an effect's keyframe, etc.) to happen at a specific time. If I park PPro's playhead at, say frame 50 of the comp, then do a ctrl-E to open that comp in AE, it'd be marvellous if AE could move the CTI to that exact position (taking into account the in-point in the PPro timeline), and I'd then know it's synced with PPro's timeline and I could then time my keyframes/in-point/etc precisely.
Currently, when the comp is opened in AE, the CTI is at whatever time it was previously parked in AE, and PPro's playhead position has no bearing on this.