Almost every known product maker make procedures around having a vulnerable product and advertises it as 'securing your data has the utmost importance' while releasing thick stream of security patches on the back of patches, more than not making updates mandatory this way or the other.
'We may finish that later sometime after sales' kind of product development.
Not in this particular case. Here, it's more like "buy our new product if you care enough about the latest vulnerability; the old one is unpatchable by design".
'We may finish that later sometime after sales' kind of product development.