Is there an easy way to change the timeline logic? I think it would help the switch from other tools. Here is what I am looking for:
Video and audio should always be displayed separately. This way, you have a clear stack of video where V2 always stay on top of V1 so if you want to make a picture-in-picture, you drop the background on V1 and the foreground picture on V2 and then apply the effect to the clip on V2. The tracks stack the same way you stack a pile of books on a table and you view the stack from above.
This could be a setting so that you can set and forget and those that want to keep it as it is now do not have to think about that setting. There should also be a setting where you can set that you should never display audio as part of the video track. Again - this is for those that comes from other tools where this is the normal way of doing things.