You're half-correct. People do need to play all factions to understand the mechanics and issues. Playing just one side leads to horrible bias.
However, playing all factions a roughly equivalent number doesn't make sense at all, since that would mean you play 50% more Allied games than Axis ones. And across a playerbase that is simply not possible since the matchmaker needs to match the playerpool 1 for 1 exactly. If 3 people are queuing Allies as Soviet-USF-Brits and only 2 people queue Axis as OKW-Ost, 1 Allied players will be left without a game.
So if you play equal games with all factions, you will have 50% more games as Allies - assuming that you can even find matches that often. The true equilibrium is playing both Axis and Allies 50-50.
This is why Katitof and gbem style comments should never be taken seriously. FYI Gbem claimed that my 1544 games as Axis and 1501 games as Allies made me "Axis-biased" at 50.3% Axis games (while he himself played 100 times more Allied games than Axis ones).
I agree with all the above. IMO it is just hard to pinpoint the exact proportions of games played to make sb less biased or ideally not biased at all. I don't think anybody serious might really think it should be exactly the same number.
Another thing is voicing strong balance opinions without any significant experience of playing all of the factions involved. Maybe it should just be added to players' signatures and then people reading the forum would just know what kind of player voices what kinds of opinions.
But to the stuka ze fuss point. I really do feel that more precise indication of rocket target points (be it squares or dots or anything of that sort) would spare some frustration of using the stuka for both sides. To be precise here I must add that those point would just show aim point not precise landing points of the rockets. I understand that a pro player will know where each rocket is aimed. This means that the player on the receiving end will feel stuka is performing really well (looking at tourney use by pros it might still be a risky statement - stuka missed a lot). On the other hand, a fresh or intermediate player using stuka will feel that those rockets are frustratingly unreliable for such fuel investment.