An interesting buy if true. Certainly more Frogfoot and Hind/Hip procurement make more sense with regard to the current and real threat to Assads regime. That said their airspace is busted by just about everyone these days so perhaps they are unwisely bolstering capability. A thirsty 1980s aircraft they will struggle to operate with the RCS of a house is a weird choice. Sellers market I guess.
As has been said we currently fight the same enemy as both the Syrian and Iranian Air Force (who'd have thought it) and the RAF/coalition "holding action" is to a degree held togther based on Assad holding his ground.