I think it was a good choice for BB to ask BTS about the fandom donation to buy music in the US in the interview. What the fandom currently doing can be seen as a chart manipulation and get lots of criticism, controversial among western fans and press. There are many articles wrote about this, also BB has been quite shading them about this fandom buying power few times.
RM provided a good answer and put the work for BB to do their job. If they are not happy, they need to change the rule. I still think the Company (HyBE and Columbia) should also involves in the process of limited online store sale, but mainly it’s BB responsibility .