So it isn't much of a secret that everyone loved weak point. The data disk gave 4% offense for each debuff on all characters when they use an attack. It was a green disk that cost 2 pips/dots/whatever to equip.
In the recent content update, they changed:
EVENT - Updated Conquest data disk “Weak Point” description to match functionality.
Now to me, that sounds like they change the description and not the mechanics right? It also would mean that they would have kept the name and ability.
However, I come to find out that they replaced weak point entirely with an inferior data disk called "weak spot" that only grants 2% offense for each debuff instead of 4%. Honestly it's just a dishonest thing to do to change a data disk that was very widely used and rename it and everything without a proper announcement. Conquest is already a terrible game mode in it's current state, and you just want to make it worse guys.