This is my opinion and only my opinion -
At the very end, where the town was dark with candles, it seems to be preaching that we must totally stop all fossil fuels and live in the dark to save the planet.
As I have posted before, Fossil fuels made everything today possible.
Without oil and plastic, there would be no internet, no world wide web, no devices to access the web, no forums.wdwmagic.com, no WDW.
In my opinion, it's hypocritical to all of a sudden make fossil fuel the huge villain AFTER it got us to the great standard of living we enjoy on a daily basis, including everything needed end to end to post on this very site.
In my opinion, we still need oil to make all sorts of materials.
In my opinion, if we want to stop burning fossil fuels for power the answer is nuclear power.
Whatever solution peoplekind comes up with, it should develop over time as to not yank the rug out from under people just trying to live, work, grow their families and live their daily lives.