Flirc, Argon Neo, then all the generic billet Aluminium passive cases, all of which are in the ~$20-25 AUD range (whereas this one is almost $50 AUD).

This stinks of blogspam to try sell their new overpriced case.

Not to mention, like you said, with the recent updates that have made incredible progress in dropping the temps, any generic cheap passive case is fine even for quite heavy use. I have multiple Pi's (3s and 4s) running 24/7 and a few doing quite heavy loads (transcoding, etc) all with cheap Aluminium passive cases and have had zero issues since the firmware updates.