Well, the strat of the day seems to be the '70VA by Fa42'. In that case, yes, England has to play more aggressively. When I first posted that (3 weeks ago), the main strat was trying Sea Lion. If you are off defending every nook and cranny, you WILL lose England to a good German player.
So, IMO, it behooves the WAllies to guard England first, and then do what can be done to keep Germany off balance. If England falls, there isnt much you'll be able to do to stop the AV by Fa42. Playing with FoW on, Germany can mass an impressive number of Tac Air and Fighters and pound England pretty hard.
But since the current trend is to ignore England and focus on the neutrals, then yes, the Allies have to change up or else lose to the AV.