I dunno though, this story from K-State Sports says the first game was nearly sold out:
Despite a game-high 23 points from Kansas State sophomore Nick Russell, the East Coast All-Stars dropped the opener of their nine-day tour of Europe with a 92-80 loss to the Swiss National Team on Sunday before a crowd of nearly 7,000 fans.
So either:
1) This isn't a picture of the ECAS vs Swiss game, or
2) The first game was public, the second one wasn't, or
3) KSU Sports got their facts wrong.
Still think #1 is most likely.