I'm not even an Army but when most kpop groups try to build a fanbase outside korea, it's a no brainer to add eng subs. BTS have an established fanbase worldwide and they're not asking for much at all. It's literally the easiest thing to do, just hire some people to sub the damn videos.

Plus I heard that BigHit even takes fansubs down which is just stupid.

Finally!! I am so happy that iARMY started fighting for something that BH should be doing for long now. ARMY is a huge fandom with fans all over the world, many of them are not native English speakers. It is not like people are asking for subs in their respective languages, so I don’t get this whole “learn Korean” thing. I know a lot of people are learning (me included), but I also know not everybody can/have time/have money etc. to do so. Hopefully BH will start adding subs soon.