The commentator here, Salvatore Mercogliano, has a regular podcast. Usually he talks about the merchant marine, but he has chosen to take a look at the history of the Offshore Patrol Cutter program and the two shipyards that have been contracted to build them. His views are well balanced and informative. It is a worthwhile 15 minutes.
Thanks to Lee for bringing this to my attention.
Chuck Hill's CG Blog 
I think he’s a bit off on a few points. The ship was originally due for delivery in 2021 with the Hurricane delay. He implies they had since 2016, but that was the award decision for design. If you follow the timeline for the Constellation class, OPCs timeline is fast, unfortunately.