Awakeners like Rabbit that use peculiar items do so at the expense of life vitality. Although each activation of a peculiar item yields powerful effects, the excessive consumption of life vitality could, despite timely replenishment, slightly reduce one's life expectancy, colloquially known as "shortening one's lifespan."
Indeed, as the Martial Path gradually matured and the number of inactive peculiar items dwindled, it led to the once-thriving Awakeners faction to slowly begin its decline.
Dong Tianyu was well aware of the flaws of the Awakeners on Rabbit's side, he just didn't know if any problems would arise after awakening Super Ability and using it.
After the Superhumans on the deck had rotated through two shifts, Dong Tianyu finally used his Invisibility to stealthily enter the aircraft carrier.