Shockwave totem not creating consecrated ground with Zealotry

I did 10 maps without any other source of consecrated ground, only zealotry and shockwave totem. I never saw a single consecrated ground created. Is this a bug or intended behavior?

Yes, intended. This was explained in some mechanics Q&A.
This stat You and nearby Non-Minion Allies have a 10% chance to create Consecrated Ground on Hitting a Rare or Unique Enemy, lasting 8 seconds requres to affect the hitting object itself to work. And since totems can't be affected by offensive auras, they can't create Consecrated Ground.

Easier but less accurate explanation: this stat is not considered "offensive" so totems don't inherit it from you, unlike the other bonuses (spell damage and spell crit).