This phenomenon is evident throughout the Russian Air force and with all types of advanced munitions. We saw during the Georgian Russian war that when it comes down to it, Russia doesn’t have stockpiles of smart weapons, cruise missiles, and (evident in this article) advanced AAMs. Even when it does have these weapons, it lacks the ability to coordinate CAS, or even basic targeting as it often lacks maps made after the USSR broke up, and lacks nighttime strike capability except in it’s latest aircraft.
The whole Russian Air Force is still running in third world economy mode. The million dollar question is to what degree missiles and targeting pods could be produced during a 3–6 month conflict with a nation that can punch back.