Maybe, but I think that is far more true of indoor/outdoor cats that don’t need to depend on their skills to stay alive (except the skill to not get run over, and to run the hell away from tiger meaner animals), but do at least exercise them from time to time. As opposed to full time indoor cats that may struggle to recognize anything other then kibble as actual food (my cats refused to eat cooked turkey for example “WTF is that!”), expend most of a day hunting and failing to catch a fly, and growl at far larger cats through the window.
Also one of my cats is almost pure white, the sun kills them pretty quickly (not as in “dusts when exposed like a vampire on Buffy”, or even “over a day”, but they get skin cancer at greatly accelerated rates, so might only last two years even if she manages to figure out how to hunt (hard with one lazy eye), avoid dangerous things (she is actually great at that as she attempts to avoid everything), and learn that food doesn’t come only in the form of kibbles (might happen if she gets hungry enough, might)).
On the other hand, both cats have had all their vaccines, so please don’t lump them in with the fools in Oroville.