I grew up watching a lot of 90's show where the main protagonist has some kind of super powers and this show is no different.

The fact that it's tagged as Horror has nothing to do with "horror". Its like a toned down version of E.T movie for 8 year old kids.

The show is mostly about a bunch of kids fighting to make themselves heard in an adult world, this is why this show is so popular among kids. The "horror" part of the movie is just an after thought.

Stranger things keeps baiting the audience by dangling little hints of horror and super powers in 3 secs scenes just to keep the audience entertained and hooked, but the rest of the screen time is just petty problems of kids and adolescents trying to do the right things.