If I had to place a bet on why it would be the legal backlog of paperwork and agreements... too many hoops to jump through and the bean counters concluded that killing the series > all the paperwork and legalese of going forward with one more season under the Disney banner... something no one though of in the likely years
of planning this sale??
Greasy fucks! What about Clovis?
Executives love movies and not television shows. Look what happened with Star Trek.