ADP: Jobs up in December (but lower than forecast)

ADP is a payroll processor amongst other things. They showed a net increase of jobs for December though it was lower than forecast. Though I'd seen some news articles saying this could be good, it also very easily could be seasonal hiring .. esp given that retail is the #1 employer in the us. Link to the WSJ article: https://www.wsj.com/economy/jobs/private-hiring-trended-positive-in-december-adp-says-5e649317