Although not well known in English speaking countries, there was something called the 30 Years War , 1618-1648.
The Catholic rulers at Prague clashed with the Protestant city leaders there, and a war broke there.
It is not easy to define the war, with many different players and many different factions, all fighting for their own causes, but it is sufficient to say that virtually all countries of Europe, except England (which had its own problem, named Oliver Cromwell), jumped in, devastating what was called Germany back then completely.
(Germany as we know it is about half of what was called Germany back then - at that time everything which was not Franc, Spain (at that time Portugal was part of Spain) and Italy in mainland Europe west of Poland (much larger back then, which is another story)was called Germany )
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At the height of SM's power, Lee Jieun, SM's greatest enemy, was NOT welcome anywhere near the SM facilities.
Jonghyun did A Gloomy Clock with IU, and IU did come as a guest in a personal concert of Jonghyun, but even now, when SM is owned by Kakao, she does NOT venture near the SM building since the staff still hates her.
Winter and Ningning entered the Hybe main building in triumph, and while it is unlikely that Bang would have been there when they climbed to the top floor where the Ador HQ is at, they basically stepped over everybody, including Bang, making him a laughing stock.
With the support on New Jeans by other idols, it is like they are intervening in the Hybe civil war.
If BTS were strong and powerful no one would have dared such moves.
The diols doing these challenges only can mean that they NO LONGER FEAR HYBE, and by corollary, no longer fear BTS, whom they apparently see as a has been.
They do not expect to receive the wrath of BTS when it returns, knowing that it is no longer that relevant. Strong among the remaining Armies, not much so as far as the rest of the world is concerned.
A very, very, very remarkable move.
If Armies did not insist on OT7, and let 5 or 4 members of BTS allow to do world tour, and them defeating Taylor Swift, MHJ would have thought twice before striking out.