The larger storages might be fine for younger ages with lots still to upgrade but it's useless for us veterans with nothing left.
Agreed, that's why Nobodyknowsthetrouble mentioned that we now have the most useless solution imaginable.
There really are only three ways out of this IMO as a quick fix to the problem:
1. Create several more levels of walls/gates/garrisons so that even the top players will take a few months to max them out (but at the same time won't those walls become almost impenetrable?).
2. Find a building/solution whereby those with too many resources (and nothing more to do with them) can donate them to lower-level players.
3. Get rid of the cap in Parliament so that alliance members can invest unlimited amounts of food/gold/oil (without switching to Crowns).