"You could not pinpoint the location of the violin as you might expect you could on a good recording of the same work!"
The key is live, acoustic, no mics: non-recorded; non-amplified.
They could have left it unamplified, but recorded it with mics hither and thither. Attending the acoustic performance, it would sound to you as it did: but the recording of that performance could definitely have excellent imaging, depth .... soundstage,
depending on IF ’they knew what they were doing’.
And, depending on IF your system/space can present it well.

