Telling about a possible end to earth isn't a problem. Telling about a possible end to earth in a crappy, hamfisted, bereft of craft, patronizing way is. How about the writers use some of their alleged writing skills to do (gasp!) a good job at telling us?
Just because some message is admirable doesn't excuse massively botching the execution of delivering the message.
Is it too much to ask for provocative, interesting, thoughtful delivery instead of paint-by-numbers zero-effort anvil-dropping?