Why not just ban cartridges altogether? Ink tank systems seem pretty robust and you can squirt irt any kind of ink you want in there.
They're using the term to apply to both ink and toner. I don't really want to be refilling toner tanks at home.
I had an Epson Ecotank ET-3000 series and was disappointed to find that the prints faded noticeably in just three month! I did a lot of research on ink permanence and got an ET-8550 and prints I made four years on that look pretty good.
Third party ink is trash though and there is no accountability. All the time I see on forums that somebody tried to make a borderless print and got an inksplosion and the common denominator is third party ink.