‘Abrams revealed that in meetings with The Force Awakens and original trilogy writer Lawrence Kasdan as well as Rian Johnson and George Lucas, they settled on an ending that was specifically designed to bring the nine-film series to a satisfying conclusion. “If a kid is watching all nine movies,” Abrams said, “he or she sees this one path, this inevitability and that’s the challenge of this movie.”’
So it looks like its an ending everyone was in on.