Apologies if I came across as accusing anyone of racism - I was trying to address the issue of those 'signs' specifically, though I suppose I was a little vague. To be more direct, I feel like Dami's Korean heritage shouldn't really be sign of Korea moving towards Eurovision; they'd have had no hand in SBS' decision, firstly, and if we were to assume that Dami's selection hints at a Korean debut, then we could just as easily say that Guy's selection was a sign of Malaysia in Eurovision, or that Loreen's participation hinted at a return from Morocco, or that Tooji's selection was a sign of Iran joining the contest. I get that people want to speculate about new countries joining the contest, but I just don't see any tangible links here to base that speculation on.
SBS... doesn't exactly have a reputation of throwing around money of any kind. The general perception is that they're on a constant shoestring budget, and they're often having to axe shows or cut funding to keep themselves up and running. Somehow I doubt they've got enough money floating around to put together a bribe that'd convince the EBU of anything.