No. Allies have superior anti air. Neither the Flak HT/base, 222, Ostwind or the myriad of pintles mgs can not stop the p47's from doing their first pass. While ju87's will get shot down before they even have the chance to do so.
So if you chain the cost to the capability of the opponent to counter what should we do after...
- Soviet M5 Quad AA kill chance went from 10% to 5%
- M15 AA HT kill chance went from 15% to 8%
Beeing cheap and affordable (cost+population) this two vehicles were always the main source of allied AA. So shouldn't the MU cost go up now by your logic?