You are right. The benefit of loose leaves is that it ages faster. It allows the Pu-erh tea to have more oxygen for oxidation, which will make the tea more mellow and develop an aged flavour quickly.
However, loose leaves are not good for long-term keeping compare to compressed tea, because the tea will loose its flavour faster and sometimes, will cause the tea to become too smooth for a person`s liking.
On a time-line, compressed tea, with good storage, the flavour, Chi, and taste will get better and better slowly until 60 to 70 years of age, afterwards, it will become weaker slowly until 100 to 150 years of age. Loose leaves will attain better taste sooner, however, the flavour starts to weaken after 30 to 40 years of age.
Therefore, we should use different ways to store the tea according to our personal taste and preference, which will make the tea taste different. In my experience, we should appreciate both loose leave and compressed tea from a different perspective, and in accordance with our personal likings.