Sure… i suppose.
But the speaker and the piano both interact with the room.
and a recording may also have the sound of the room it was recorded in.
i like sweet-n-sour when it is an Asian or Hawaiian dish… but I do not want to spice the speaker choice with the room choice.
Most people looking at a Steinway would likely have a decent room, and if they already had a piano, then the room is/was likely a a driving force in the selection of the house.
What people seem to be talking about here… or how I am reading it… is that we have say a teenager setting a garage for the band scenario.
And that they choose a Casio keyboard because it sounds good in that particular garage.
That is a lot different than scenario, than saying, “I know the garage is not a great room, but uncle Mike said we can use his ol Steinway.”
granted… I do not own or play a piano, so maybe it is more nuanced than I think.
but I would not be opposed to selecting a speaker without an in-room demo.
Klipple, and other measurements, should generally provide a way to get a good idea how it should perform.