There's also thousands of Omnium owners that haven't had any issues. Not saying this is the case for every failure but if you overtighten your pedals, let corrosion through and don't feel play or hear creaks because your drivetrain is caked in dirt anyway you are more likely to expose yourself to catastrophic failure.
Omniums more susceptible to impact damage and pedal strike maybe? A lot of other track cranks bulge out around the pedal threads, whereas omniums are straight.
There's also thousands of Omnium owners that haven't had any issues. Not saying this is the case for every failure but if you overtighten your pedals, let corrosion through and don't feel play or hear creaks because your drivetrain is caked in dirt anyway you are more likely to expose yourself to catastrophic failure.