Could not agree with you more about the Arturia piano instrument.
Iām a pianist first and my go to is NIās Noire in a patch I made from the basic Noire, and a bit of compression, because Iām not performing classical pieces, per se. If I want to play classical pieces, I still use the Noire, but with a very straightforward implementation, and it is truly a masterpiece of sampling - or I use a real piano.
The Gentleman upright is my go to for plunking out parts and playing on a track with a band, but I have a lot of pianos now over the years, and the mixes speak for themselves. Hands down, the NI sample-based pianos are solid and groovy for recording - especially film cues.
My view on the Arturia piano is that itās not meant to be a recreation of an actual piano, but a piano-like instrument born of modelling and maths, and endlessly alterable in vastly different ways than a sample-based instrument. Itās just a different instrument.
When youāre recording multiple tracks, what sounds āgoodā by itself, often wonāt sound āgoodā in a mix, unless it just happens to match all of your acoustic requirements, or thereās only a couple of things going on in the mix at the same time.
If you took just the piano TRACKS from most of the hits from the last 30 years, most people would be shocked at just how much is chopped out from the low-end. Those parts by themselves sound thin, tinny, shallow, even brash, but you drop them in the song, and theyāre perfect. Imagine Steve Nieve playing piano with Elvis Costello and recording the full range of that piano - there wouldnāt be room left for DP MacManus to even sing, let alone have a band on there!
Itās a bit of a catch-22, because if it sounds awesome by itself, itās probably taking up a LOT of the human audio spectrum, and for it to sit with other tracks, will probably have to be high-passed, and EQād, or low-passed if itās doing bass duty.
Cheers!