In what immediate context is the designation Ahl al-Sunnah wa-l-Jamāʿah used?

Salvation of Children: Aṣlaḥ, Recompense and Theological Differences

• The account of al-Ashʿarī and followers affirming the Sunnah while challenging Muʿtazilī views
• The unqualified affirmation of al-Jubbāʾī’s aṣlaḥ principle
• Uncritically accepting every position associated with philosophers
• Claiming consensus on every reported view of children’s fate