three dragon helm ( shock to freeze buildup qn )

for three dragon helm, it says hits from lighting damage now do freeze build up instead of shock chance. So is it pointless to add shock chance and magnitude ?

this is so confusing

Your fire skills would give you shock instead of ignite, your frost skills would ignite instead of freeze, your lightning skills would freeze instead of shock.

So if you wanted to be shocking and electrocuting you would need to respec into fire, but if you wanted to be freezing you would want to move those points from shock chance into freeze chance.