Puncturing Strikes adds a tiny split-second knock-back at the end of its channel, after which the enemy becomes CC-immune for 5 seconds.
The knock-back is completely useless, it doesn't hinder the enemy since it is so very short, but the enemy gets five seconds of CC-immunity
as a gift after every Puncturing Strikes, meaning that any Templar slotting Puncturing Strikes, has no way to use any real CC, since the enemy
is always immune.
The only solution is to not use Puncturing Strikes, which for me isn't an option.