Hey there,
What you present here is a very popular issue now, and while I understand it, it is also something I had my own opinion on for some time.
Thing is, with how big power differences are on lvl 90, it's exactly the same thing as it is with stopping the leveling. What I mean is, on my example. I'm a level 90 player with about 74k power. Situation for me is, that I either face players that are 40k power, or 100k power, it goes either way. If we were to take this situation from the 100k players perspective, they are to me, what 60k players are in lvl 89 fields to others.
I apologize if this wasn't too clear, but it's a topic that's a bit complicated for me to explain. Basically what I mean is, no matter if you stop your leveling or not, there is going to be someone who stands on top of SWB. Players who stop leveling make it easier on themselves, and so do players who spend a lot of money to have high power. Personally I don't mind either, I win some, I lose some battles, being fortunate enough to be a "middle class" of my Sage World Battlefields, but I enjoy the fights more than the actual factor of winning or losing. I understand it may be a problem for really competetive players, that cannot afford to increase their power by spending, but it's a problem that's unavoidable.
This all being said, my essay behind, I respect the suggestion, and whilst it's rather unlikely to be implemented, I will forward it to our team to be discussed :) Thanks for the feedback ^^