From 2011 to 2014. Feels like time travel.
Regarding enclosures, I think the time for internal 'silencers' is drawing to a close. As smaller form factors like µATX and mini-ITX become more popular, there's just no space left (RIP 5.25" bays; note plural), so it'll be soft-fix (elastic band etc.) or nothing. SSDs are also slowly but surely taking over as system drives, so you won't even have a pressing need for an internal HDD anymore. I think the latter especially are contributing to any decline in the HDD peripheral market.
Obviously SPCR should be the entity to test any contenders left, but it just seems like that train's gone as far as it will go.
Another factor are external enclosures. They are as affordable and offer much more versatility than silencers; hotplug, remote placement, modding etc. With eSATA you won't be giving up performance or features either. If you have a need for massive storage (more drives than comfortably fit in enclosures), NAS' are not out of most people's price range, although you will give up some performance in the process - but that's only a critical factor during initial setup, as in use a good Gbit NAS serves quite well (way faster than most clouds/internet anyway). I may backup several hundred megabytes daily without an issue, sometimes even during online gaming.
Glad to see HDDs still getting some love despite having become second-class citizens in the world of silence.