Exactly. The base curve processes the photo too much. It is used to imitate approximately the look of the JPEG file produced by the camera. I prefer to keep control over contrast and brightness myself.
The dynamic range of the photo is narrow enough. There is no need to use Filmic to compress it.
Here you can see some examples why:
Yes. I don’t think the order is important. Just try it yourself to see if there is a difference.