On p. 81 of the Owner's Manual is the following
Driving range
The driving range displayed on the multi-information display, etc., shows the reference distance that driving is possible, and the actual distance that can be driven may differ from that displayed.
Displayed value
A value for which a sufficient level of driving performance can be provided is estimated based on the remaining charge of the traction battery, the state of the traction battery, the outside temperature, etc., and is displayed on the multi-information display.
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This appears to me to be an honest statement. Please notice the following "reference distance that driving is possible" and " A value ... of driving performance ... is estimated".
It seems clear to me that ALL of us saw numbers of miles and assumed that they were indeed promised. We should not have taken as absolute the numbers given to us. Subaru told us it was a reference of the possible / an estimate of performance. WE were not good readers because we wanted the bigger numbers. Who misled whom?