Also, since
Spoiler:goes against the core-premise of the Lucas Trilogies for reasons that fans already know about, that means that the Disney Trilogy is indeed Non-Canon to the Lucas Trilogies.
Palpatine surviving
The question is - barring someone going on an education-campaign to inform all the folks out there, how long do you think it will take for Disney Star Wars being Non-Canon to become common knowledge?
(And yes, Lucas's premise for the PT and OT were that the Chosen One Anakin/Vader would destroy the Sith and set the Force into balance - so Disney revealing
Spoiler:, means Disney Star Wars is officially Non-Canon.)
Palpatine being alive
It is what it is - but it's brutally-simple and I could re-explain to someone a billion times if I had to, until it sunk in.
Disney Star Wars is Non-Canon. Period.