"Dead" would imply that they aren't being made. Which is not the case. So no, I don't think they are "dead."

Now if that article was questioning how good the newer Sci Fi movies are, that would be different.

I like the older Sci Fi movies for some reason. Maybe it's because my brain can't wrap itself around all of the high tech talk and stuff going into the newer movies. It took me years and many attempts to finally watch "The Matrix" and TBH the only thing I enjoyed about it was Hugo Weaving. I didn't understand a blasted thing about what the movie was about, LOL

At least the older Sci Fi movies I could mostly understand which made them enjoyable to watch and in my opinion "good" movies, or at least "better" than the ones today.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi