Isn't "SUV" just marketing lingo that has no real meaning good or bad? I owned an IH Carryall way back in the day; currently have a Toyota Sequoia and have had a Suburban, Wagoneer, Cherokee, Liberty, and Subaru something in between.
Some could tow a lot (nothing compared to my F550...) some not so much, but all of them could be "sporty" depending on the meaning, and all had some utility...so they're all "Sport Utility Vehicles" in my book.
The Sequoia's great for towing the sno-go's or the small ATV and it's great for running around town. The F550's great for towing the flatbed and for plowing snow; not so much for grocery getting. Each vehicle fills a mission slot and if it works, the maker can call it a Blkgovfizit for all I care.