Exactly. Soekris was the first thing that came to my mind after seeing this news, having used various Soekris boxes for home router for many years. Eventually got replaced by Ubiquiti EdgeRouter 4 (which are now also impossible to get via common sale channels, besides ebay) running OpenBSD.
At work we have hundreds of Alix/APUs in the field and they have been great, very low hardware failure rate (occasionally a NIC going bad). We will probably make a final order to carry us through and then it's back to the drawing board.
I also have fond memories of my personal Soekris box running m0n0wall in the early 2000s (I think back then pfSense was more bloated/slow on limited hardware). My experience with that setup was definitely what made me consider the PC Engines equipment for work.
Similarly I have also switched to Ubiquiti for home use.
I have a feeling that the MIPS-based Octeon SOCs are EOL or close to it, and Ubiquiti is allocating everything to the Unifi versions of the same hardware.