Disney isn't actually opening much in 2020 though - it will basically be the year of being overrun with star wars fans. Their big year will be 2021 when they celebrate their 50th and open Tron and GotG. Opening a whole new Jurassic WORLD seems like it would be a pretty good way to draw some of those theme park crowds to Universal. I wouldn't be surprised if they just push Bourne to 202o and call it good enough, because people whose main priority is seeing star wars in its first year are less likely to be drawn to Universal regardless of what they open in 2020.
I'm not saying it should have been as fast as a coaster to build, just that it should have been quicker than it was.
Basically, it may feel like the JW coaster should be ready in late 2020, but it also feels like F&F should have been ready in late 2017 and we know that didn't happen.