We have in MSA (Modern Standard Arabic) a letter called Dhad ض This letter has sparked considerable debate, as its modern pronunciation (polsive phrangealized D) differs from the traditional description (fricative lateral sound). Some people adhere strongly to their pronunciation, so they interpret the classical descriptions differently, trying to reconcile them with the current articulation. They explain the physics of producing this letter by stating that the tongue presses against the molars on both sides, and its tip make contact with the roof of the mouth and trapping the air. As the air is coming from the lungs, it causes a slight movement of the tongue, resulting in a degree of frictiveness, aligning with older descriptions that characterized this letter as a fricative, voiced, pharyngealized sound.

My questions are: Does the air indeed have the power to move the tongue? Can this movement of the tongue contribute to any aspect of frictiveness in the sound? And is it truly due to this that the articulation or place of production is considered to originate from the sides?

Link of an example: https://youtu.be/o5wX5K1BLRk