You can always wish for more efficiency, but it's important to understand that SSDs have actually been getting steadily more efficient in the Joules per Byte transferred sense. We're just seeing a simultaneous concentration and consolidation of performance that is moving a bit faster, hence the need for enterprise SSDs to abandon the M.2 form factor in favor of the somewhat larger and easier to cool EDSFF family.
One way of looking at things is to realize that until now, a storage controller handling 14 GB/s of traffic would have been a full-height RAID card demanding 300 LFM of airflow, and now we're putting that much throughput into a SSD with a heatsink that's roughly 1U by 1in in cross section.
One way of looking at things is to realize that until now, a storage controller handling 14 GB/s of traffic would have been a full-height RAID card demanding 300 LFM of airflow, and now we're putting that much throughput into a SSD with a heatsink that's roughly 1U by 1in in cross section.