Hello again everyone!

Q79 :

I have a question about the "Devout Protector Expertise" feat.
Dnd4.Wikia says :
[...]
While using a shield, the adventurer's allies gain a +1 shield bonus to AC.

I saw people talking about this bonus on forums (reddit) as well.

But on DR402 there is no mention of this shield bonus to AC?

Have I missed something?