it is all about the method of storage as well as the method of ingestion. As we have learned MGG, denser pieces of hash are better for conduction vaping, also for transport, as hash is often quite sticky and if too powdery will often even stick to your oil slicks lol. I suspect these reasons are at play
I would be concerned about losing terps from heating in this way, better to just press without heat and dab methinks ;-)