The contrastive force of «lā fīhā ghawl» and the separated attributions of «lakum dīnukum wa liya dīn» should not be extended to unrestricted claims about everything left unmentioned.
Relative restriction (qasr iḍāfī) applies within a specific contrast, whether explicit or understood. A truly exhaustive restriction has a broader logical scope. Fronting alone is not enough to establish universal exclusivity in every case.
For example, “Here the teacher is Khalid” may identify Khalid among the teachers relevant to a particular classroom; it does not deny the existence of other teachers everywhere.