I generally don't believe in this kind of silly idea of dropping a dating story to cover up something else.
I just think that the Korea public, like the public everywhere, has an interest in celebrity gossip and pairings. This has ALWAYS been a thing since the idea of celebrity was a thing. I mean, back when print media was a big thing, there were whole ass magazines more or less dedicated to celebrity gossip, hookups, dating, marriages etc. They still exist.
The public loves this shit, and the media knows this. It drives clicks and views and discussion, which breeds clicks and views... and this = profit.
They don't need some oooohhhh spooky dooky conspiracy "it's covering up some other news" garbage to justify breaking a dating story between high profile names. They just need to see the dollar signs.
Not everything is conspiracy.