Sounds like raising exposure till the shadow part looks OK, the enable filmic and deal with the white slider.
The did do landscape style shots with filmic, specially for dawn situations with the sun creeping through creating a very wide dynamic range. Filmic does well for me there. Just don’t be afraid to slam the exposure up before filmic. Or turn the midpoint control back on and raise that to get more room for shadow - content.
But… The important thing about my post was that filmic is a tool to map hdr to sdr. Or at least map a dynamic range into another (smaller) dynamic range.
Its not a one-stop-shop-does-it-all module, it’s OK to grab tools after it to modify the result. After filmic you are in display-space so basically every module is fair game.
And of course if it doesn’t work for you don’t use it :).
For me working with curves on the raw data doesn’t seem ‘right’ or logical. You can’t do curves on data that sits outside your curve. So you first have to bring data in to sit between the 0.0 and the 1.0 point… There’s filmic for that. And you might have to define how far down and how far up your (usable) data sits in the raw file… There’s filmic for that.
Of course, filmic is in a simple way a s-curve editor,with color mapping and support for values below 0.0 and above 1.0.
If you often used to modify the base curve in a way that it doesn’t look like a s-curve or simple gamma curve… Filmic (alone) isn’t going to help you.