There is. It’s called tuning your setup to the room and is what a 31 band is used for.
What you describe however, is the same for FRFR and traditional setups... so it’s a moot point.
Most digital amplifiers will HPF at circa 40hz out the box anyway. As for the higher content, well, if you are using something like a modeller, all that EQing will be done in the model. If you aren’t using a modeller, then yes, your reasoning with regard to high end detail is right - if that is what you are looking for.
What preamp or modeller you choose is up to you. Not every modeller does this - and given the amount of time purists out there, if this truly was the case (it isn’t) then the sales figures of these systems would fall in line with that argument (they don’t)
We can’t hold the designers responsible for shortfalls if the end user is not using the systems in the manner for which they are intended.