Modern day "SUV's" are nothing more than tall wagons with a taller suspension.
I think what Crunchtrek is referring to is that the XV is definitely not an SUV in the old-fashioned sense.
SUV's used to be body-on-frame vehicles purpose built for the sole purpose to drive off-road, tow, etc (basically truck capability) without sacrificing passenger and cargo capacity like pickup trucks do. Basically, the bed was removed for room for passengers. Their on-road capabilities were an afterthought, though they were very capable off-road.
Today, most "SUV's" are nothing more than tall unibody wagons with no truck structure (that the body-on-frame construction is, a truck frame) and primarily intended for use on pavement, with off-road capability taking a back seat in priority.
So although Crunchtrek comes off as someone who doesn't know what an "SUV" is, I would have to agree with Crunchtrek in that the XV isn't a "true SUV", but a crossover, the term used fo describe a unibody vehicle with some or watered-down characteristics of "true" body-on-frame SUV's.
Yes, today's media and organizations refer to crossovers as "SUV's", but they are a far cry from the once heavy-duty truck-based SUV's of years back.
In fact, it is stated in my owner's manual:
Because of the AWD feature and higher ground clearance, your SUBARU can be driven on ordinary roads or off-road. But please keep in mind that an AWD SUBARU is a passenger car and is neither a conventional off-road vehicle nor an all-terrain vehicle.