As someone who grew up with and around religion and has explored a wide variety of beliefs, I have never heard faith defined as “pretending to know what you don’t know” as the speaker does in the video you shared, and I’d argue that’s a straw man. If that were really the definition of faith, I'd agree with you.

I’d encourage you to give this definition a chance. My hunch is that anyone, regardless of their religion, would probably agree on this definition.