Why is the nexus lane never open at gordie howe?

Title. I have crossed gordie howe 3 times. Yesterday I waited 40 minutes to enter Canada only with a line of ~10-15 cars ahead of me. I usually check BWT/CBSA equivalent but I took for granted it was late at night (midnight) and wasn't expecting traffic. I was also expecting the NEXUS lane that I pay for as a NEXUS member to be open. Google says it is open 24/7 but I can't find anything on the bridge site proving that. What is the point of building this shiny new bridge when on a long weekend where they know its traffic there is only 2-3 lanes open out of 15+?

Is there any reason for this and is it better to cross elsewhere for a NEXUS lane?