That's a fair retort.
This is just one instance among many, though. I'm aware of others both firsthand (e.g. my iPad Mini that can't be upgraded past iOS 9) and second (e.g. "slowing down" of old iPhones that resulted in a class action lawsuit).
That means the breaking update came five years after the release of the computer, but Snow Leopard still had another two years of security updates (AFAIK). Personally, I don't think that's unreasonable.