The art partition is unique to each device. It contains factory calibration data from your specific unit, including radio calibration data, MAC addresses, and other such data.
Using the art partition data from another device will cause issues insofar as your device will be out of spec since that (unique) calibration data is required to ensure proper operation (this could even result in operating beyond the allowances for regulatory compliance).
If your ART partition is lost, wifi on that device should be considered dead (forever).