After watching the movie a 3rd time (1st: by myself, 2nd: I took my parents who haven't sat down at a movie theatre in 50 years 3rd:with a friend who was SUPPOSED to be with me on the 1st time), just looking at the background of "Jabari Land" outside of M'Baku's throne, you can see that their buildings are just as impressive as the capital of Wakanda, perhaps even moreso since they are built with the uneven mountains as a base.
So just judging by the scenery of the land the Jabari tribe and M'Baku aren't anti-technology at all. They are "primitive" when it comes to modern Wakandan standards, but they are "primitive" in the same way my parents are "primitive" as compared to my 16 year old niece. As xeno000 said, it seems that the Jabari don't want Wakanda reliant on the impressive technology that they have (while at the same time scoffing at the traditions of the country), which actually rings parallel to how people of say my generation (90's kid) and older feel that the kids today stay glued to their screens...we will not have it. I said WE WILL NOT HAVE IT!
I've said it before and I'll say it again, Man-Ape was really a problematic character in the same way that someone like the Mandarin (Iron-Man) was. However, instead of ignoring the character or doing what they did with the Mandarin in IM3, they went out of their way to strip to the core base of the character, and build in a direction that is still true to the character yet making him more acceptable and well...likeable. I want to see him as a villain (who doesn't get killed), but we have many people who want him to remain a Vegeta to T'Challa's Goku. That is how you take a character who is a HORRIBLE stereotype and turning him into something worthwhile. I normally complain when comics try to ape (pun intended) off of the movies, but M'Baku is one of those characters who definitely should move to match his movie counterpart a bit more.
