ColdPlay did six days of concert in the Goyang stadium, capacity about 30,000.
That is because it had supported Tibetan independence and cannot enter China (Hong Kong is a different animal), so there were a lot of Chinese fans coming to there.
However, Goyang, a residential town, was never well known for good hotels or entertainment, and the locals , as always, were less than happy about the situation.
Thanks to Lim Youngwoong, with zero chance of attracting foreign fans, pandering to the Korean soccer fans and Son Heungmin, an over the hill soccer player at Totenham Hotspur, the soccer stadium in Sang'am is now largely unusuable, and the pointless renovation of the Chamshil Olympic Stadium, a moot point now since the putative bid for Seoul to get the 2036 Olympics has fizzled, keeps it unusable until 2031 because now the Baseball fans of Korea want a new stadium.
Frankly speaking, no one outside of Korea gives a crap about Korean baseball or soccer.
The ColdPlay concert showed the inadequacy of Goyang very well.
The Inspire Arena of Incheon, capacity about 18,000, is mostly for in-and-out fans since it is very near the airport. The foreign fans enter Korea, watch the concert, and leave right away. it is also quite hard to get from the rest of Korea since it was designed to serve the in-and-out mostly Chinese fans.

This is how the Goyang looks like. Right behind it, there are a bunch of apartments, and the residents there complain all the time about the noise. And since the Korean local governments tend to listen to the residents before the concertgoers, the concert time is limited.
That is because when Goyang was designed it was never really intended to have huge concerts.
There are not enough places to sleep around this, which is in the middle of nowhere as far as transportation is concerned. It was initially designed to be a residential area. Otherwise the apartments would have been torn down by now.
BlackPink will have a concert there. But will BTS be happy to do a 4 day even there , which means wasting 2 weeks, when there are bigger fish to fry? I don't know.
It was wrong to allow people like Lim Youngwoong and someone I won't name here to have concerts in the stadiums since they don't bring foreign fans, and Lim Youngwoong led others to not be able to use the soccer stadium and I don't think he feels guilty at all.