| | Alloy Wheels on Bike: Safety vs Style
Alloy wheels are both for safety as well as style. Maybe the case you have pointed would have been a one-off case.
I have seen heavy Bullets with 2 spoke alloys running perfectly fine after years of use. Manufacturers do complete R&D before approving a design. It can be the alloy you were referring to would been a defective batch as it involves a perfect mixture of many elements and even the slightest of variation would invite trouble.
Steel wheels (with many spokes) are safer in the sense that it will not break but bend first, unlike alloy wheels which will crack but not bend. If you still feel unsafe with alloy wheels, get a bike with alloys and get them replaced with good quality steel spoke rims from another bike (similar size and specs obviously) at the dealership itself. I hope they would not charge extra as you'd be giving up expensive alloy wheels for cheaper steel rims.