Yes, that's often the case, the truck, having a higher centre of gravity, will roll over when hit from the side.
There have been plenty of vehicles less safe than Pick-up trucks, lol.
- Chevy Cavalier
- Dodge Neon
- Honda CRX
- Nissan Pulsar
- Chevy/Geo Tracker
- Suzuki Sidekick
And then of course it depends on the type of collision. In a front-end or rear-end, pick-ups and truck-based/style SUV's tend to do extremely well against other vehicles. When hit from the side, they are more likely to roll-over.