yes but fantastically delicious cakes have been stored their whole life as compressed.
Which does not mean that broken up cakes would turn out terribly, but only that history (which is not really repeatable), favors the intact cake.
If it is something I am actively drinking - which may take up to a year or two to finish - I tend to break up to put in container.
Otherwise, they stay as cakes.
I do like loose puerh, both sheng and shu. But loose is not the same as broken up.
Obviously, a broken up cake has much more surface area to oxidize, but time, in this case, is independent of space.