I can also confirm this works well under Madden 11, glad to hear other people have had the same idea. Its great to be able to remove the all out blitz. Last year using Madden 10, Tony Scheffler, my 2nd string quality TE, led the league in TD's, catches and yards thanks to the insane amount of times he was open due to kamikaze AI blitzing..
Being able to take out dumb CPU plays from their gameplan really helps overall gameplay.
Has this fix been widely circulated amongst those that are working on the sliders? If not perhaps it should be...