Someone disagrees with you, so you switch on to a condescending speech to make a better point ? Do you now want to continue in that direction and start comparing K/D ratios vs. players between the 2 of us ?
Also: airforces are nerfed, airforces in CoW 1.5 are 3 till 5 times (each lvl up is more weaker) less usefull then they were in CoW 1.0
Tac bombers are still very strong against all artillery and all tank units, starting at first levels.
Now against armored cars and infantry, they are indeed less effective and are matched in damages, but only where armored cars and infantry receive their respective terrain bonus as you described. Still, bombers have more HPs than both of them at the last upgrade.
I agree on the fact that infantry and armored cars may have about 10-20% too much AA defense values though (but still give more AA defense to motorised infantry). Armored cars also seem to have too high damage values vs. light armor and heavy armor.
In summary, the air force (or more precisely the tac bombers) loss of effectiveness in general (which needs to be balanced) is aiming at encouraging players to build all different kinds of units of rather equal amounts, in order to find solutions in most situations.
Bombers have been the fastest and close to the most powerful unit in CoW for a very long time, only to be balanced a bit more recently, which gives more breathing space for other units to exist on the battlefield - And again, letting that happen is a good thing, because having players win most battles by just sending a patroling pack of 40+ bombers on almost anything is a bit sad and unrealistic.