Ardy was talking about the soviet air force in '41. There were no Laggs, Jaks, Ils, mostly I16s. The most modern fighter was the Mig-3, what was fast at high altitude, but was a brick and had very weak guns. The new generation of soviet fighters arrived at about the siege of Moscow, but still in limited numbers. And the finnish front was only a secondary war to the red army and air force, they had to face and beat Germany first. The old planes were in service in the finnish front when they were retired on the main fronts. True, the finns had some old aircrafts too, but their superior pilot training could balance the soviet policy to send untrained masses to the battlefield.
But i bet, Imow and WMaker knows much more than me.