I can't help but feel the article made quite a stretch in assuming Epic has any inclination to be bought.
"It's tough being an independent developer, because you're often bound to the will of a large publisher... so let's get bought by the large publisher instead!"
This line in particular:
...makes it sound like that's something they would desperately try to avoid.
And don't Epic Games make an assload of cash from licensing the Unreal Engine?