They are a lot more efficient in their class and might convince some ICE drivers to switch. Their range tends to be quite good. Unfortunately they have drawbacks:

• They require a very large battery. If you don't find >150kW chargers, you'll be waiting a long time
• More batteries per car = worse environmental impact from production
• Road degradation grows by the fourth power w.r.t. vehicle weight. The big batteries make electric SUVs very heavy
• SUVs are more dangerous for pedestrians due to their size
• In a crash SUVs deliver much more energy, killing more people.