I'm in one of the top guilds in my server and we are very competitive in GbG, which means we get a lot of Statue fragments every day. The problem is that it comes to a point where you have 15 - 20 maxed Statues in your city and you don't know what building to remove next to make some space. Therefore, fragments of the Statue start stacking in your inventory, and all your activity in GbG seems unprofitable (apart from a few diamonds), which means people start losing motivation to make an effort and do more battles. You may think it only affects some people, but we are all constantly gaining fragments, and with the pass of time more and more guilds will start having this problem.
The issue may be patched, at least short-term, by adding a few more levels, even if the fp production on the next levels stays the same, only increasing Guild Points and Guild Goods productions.