While we can debate the merits of the Il-2m versus various other aircraft, it is clear from the Soviet method of employment that its tactical and operation methodolgy was inferior to that of the various Western air forces, including the Luftwaffe.
Basically, the Soviets did not employ the Il-2m as a ground attack aircraft in the manner the West did. That is, they used it in formations of 12 to 24 or so aircraft flying in V of V's in an overall rectangular formation making attacks on preselected targets as a group. There was none of the British or US "cab rank" of aircraft on call over the battlefield either operating against targets of opportunity or under ground control. The Soviets did not employ it in small groups of say, 4 aircraft roving the battlefield for targets of opportunity either.
Rather, the Soviet employment was more like that of light or medium bombers in the West. This severely limits its usefullness as a ground attack aircraft. Note, the US did use a similar tactic with the P-38 where the formation was led using a "droop snoot" P-38 with a bomb aimer signalling when the formation was to release their bombloads.
You certainly would not see the Soviets using tactics like flying a few feet off the ground skipping 500 lb bombs into Panzers as the XIXth TAF did in 1944. The Red Air Force was just too unimaginative and rigid in their methods to allow for it.