My understanding was this high turnout was in a heavily Rep. District and it was being compared to 2008 turnout. In that case it is not just good, it is great.
I lived on the Eastern Shore for 20+yrs and Somerset County didn’t even have a Rep primary most years.Years ago a friend newly married and just turning 21 went and registered as a Rep. She was joyfull. When she got home her new husband was shocked and wondered what she did! After she told him about registering he laughted and said it was Ok that the head of the election board had called and changed her to a Dem. True story.