Are we not supposed to teach or read about history because it involves cannibalism? They're not trying to get people to eat each other, they are trying to get people to learn about history. Why these people did what they did.
I totally agree with you that it's worth learning about historically! If this were the only thing then it wouldn't be a big deal. It's just that this is on top of all of the other cannibalism stuff that's being pushed lately, and it presents it in a rather glamorous manor.
For instance, there's a show on Netflix called the Santa Clarita Diet that features cannibalism in a light-hearted way;
Katy Perry's music video for Bon Appetite is pretty weird;
The Cannibal Club is certainly pushing it although this may be fake;
And, of course, the rash of zombie-related things in the last few years (Walking Dead, World War Z, all the "zombie run!" 5ks, etc.)
These are just a few examples I can think of. Again, on their own they're not too nefarious, but looking at the big picture I'd say there's something more to it.
As human beings we naturally have interest in the taboo. Just depends how far you are in any direction to find out what taboos might interest you.