For some reason, uses of pronouns like in this headline baffle me. First "they" apparently relates to "Time Capsule", and the second to "Apple". Why would you write like this? Why make people struggle to understand?
I'm not the one trying to keep a piece of e-trash in use three times the life of one and complaining when it just isn't supported forever for free, so YMMV on whose got the education level.
Did you even read the article? It's basically a shitpost trying to frame macOS dropping support for AFS as "killing" Time Capsule (which was released 13 years ago).
When Linux dropped support for 486 did people rush out and complain about remote kill switches?
No, your Time Capsule (if you even have one, which I highly doubt) is not going to become e-waste. You don't have to upgrade macOS, and if you do, there are options to make it keep working.