Well no, actually, it wasn't plausible before.
North Korea only tested its first ICBM
on July 4th of this year. Previous tests were for mid- or short-range missiles that wouldn't have gone much further than Japan. And of course, neither Obama nor Bush Jr. were hurling childish insults or treating nuclear arsenals like a dick-waving contest.
Also, would you look at that? There were dramatically more tests in 2017 than in previous years. It's almost as if someone was antagonizing them, prompting them to ramp up their program in a show of force. But I guess things like observable facts don't matter to you, do they?