Right, it was referenced in one of the articles that a bunch of legacy industrial machines likely still use this hardware, so the people using those old machines are probably going to have to go dig up PCI modems from that era without the Agere/Lucent chipset.
I'm sure you're right and there's lots of stuff they've missed like this over the years that they sort of kept on for compatibility but that opens exploits due to how old they are.