If you read the original post from when chronoboons were added, PvP wasn’t even mentioned as a reason. PvP is irrelevant.
The reason chronoboons were added was because world buffs incentivized people to get their buffs, then log out for potentially days/weeks at a time and NOT play the game. That’s terrible game design. You want to incentivize people to play the game, not the opposite.
No one in this thread can come up with a better solution to that problem than the chronoboon.