EA should just leave it alone, not knowing when your bubble was going to burst is a pretty minor thing, most players would have popped bubble day 2 anyway. Everyone knew what they were getting into when they signed up for this server and knew that the strength of enemy bases was irregularly distributed.
The team to come out worst from this are the ones who started in the sectors and immediately had to start hitting level 20 bases so progress to the centre is understandably slower, to adjust base levels now runs a serious risk of alienating some of the longest playing (and biggest spending) players of this game.
EA need to thing seriously about how this change will affect all players, not just those whinging about losing their bubble which is hardly worth losing sleep over.