Final answer:
Packer is critiquing a focus on rare, sensational works of the Holy Spirit over the everyday influence of the Spirit in a Christian's life and the church.
Step-by-step explanation:
When Packer states, "We have become preoccupied today with the extraordinary, sporadic, nonuniversal ministries of the Spirit to the neglect of the ordinary, general ones," he is critiquing a tendency within some Christian communities to focus on remarkable and infrequent works of the Holy Spirit, such as miracles or speaking in tongues, rather than the more common and widespread influences of the Spirit that occur in everyday life and practice of the faith.
Packer implies that the regular teaching, guidance, and enlivening presence of the Spirit in every believer's life and in the overall functioning of the church should be valued and not overlooked in pursuit of supernatural occurrences.
This is reflective of a broader conversation in Christianity about how to understand and balance the different ways the Holy Spirit is perceived to operate.