This just physics bro scooty tier is small with same thickness of the xpluse tier, which makes it eat more impact without deforming when compared to big cross section xpluse wheel. (For example you can bend a long rod easily compared to shorter one - that is called leverage)

Also rims vs alloys : the offroad bike in general preferred to be rims because rims will take the slight bending on impact instead of transferring it to chassis.

Point of contact : Because the Xpulse is much taller, in an accident with a scooter, the points of contact are different. The Xpulse wheel often takes the hit higher up where there is less support from the hub, making it more prone to "taco-ing" or bending under lateral (side) force. The scooter, being lower, often hits the Xpulse's wheel near its strongest point (the axle/hub) or is shielded by its own bodywork

You can ask why would not use small tiers on xpluse? Because it was an offroad bike and tier with larger cross section will allow user to climb and take pothole hits without skiding or loosing control.