I'm with you on that. But honestly, even from my jaded perspective, this is actually a big deal. Sussman is major lynchpin for the entire Russian collusion narrative, falsified evidence, and direct connections to the deep parts of the Clinton swamp. He is a central player to the entire conspiracy. Expect many more, and bigger charges against him, and others around him. I see this one little "lying to FBI" charge as an appetizer.
What happens surrounding Sussman will be a big indicator for how, or if Durham is going to accomplish anything substantial.