Eh, maybe. I think decisions need less explanation when they're the right one. Why now? Maybe they just figured it out. Hanlon's razer, &c. If we need to e

Eh, maybe. I think decisions need less explanation when they're the right one. Why now? Maybe they just figured it out. Hanlon's razer, &c. If we need to explain "why now", that's still a question with your hypothesis - high speed chases have been dangerous for a long time, but they have also regularly been filmed for some while now.