I disagree; in a "normal game situation", such as in the battle server, fighting multiple people while using a 2handed weapon means that a split second of thrust stun is going to open you up to exponentially more potential incoming hits that will connect. If you're fighting a 2hander and your teammate blocks their thrust, you have a much easier time hitting them. Thrust stun is much more of a downside when more people are involved.
I think Teeth was referring to the fact that when assisting someone against an enemy that can possibly do a targetswitch against you, the stab is by far the best attack to hold, being the quickest to connect, therefore making interrupting any targetswitching attempts much easier.
Note that this makes stabs particularly powerful against light armor and poor against heavy armor despite piercing damage, as it allows extremely quick interrupts and spam at facehug range against light armor, but simply bounces against heavy armor.
Thrust stun is longest at the very end of the animation, which means doing that against all 1h and polearms with the exception of the pike and maybe the longspear is incredibly difficult (getting a late block stun on a pike would be useless anyway with the time it takes to run forward and attack back).
The way I see it, 2h stabs need their animation/sweetspot stuff changed and put back in line with the others, and a damage buff (I would call that reverting the now useless ancient nerfs). If that is not enough, change the thrust stun to be the same as 1h and polearms.