Two Lockes = caused by the Incident in 1977?

I don’t feel like this is worthy of posting on the Theories thread due to lack of legit evidence 😛 Plus, I am not sure if this has been talked about already.

Do any of you think that the 2007 story during season 5 was the cause of the Hydrogen bomb incident? Believing that Season 6 might deal with possible alternate timelines, the 2007 story (Flocke and the gang, dead Locke) is a foreshadowing for us and something to expect for the upcoming season. My only reason for not having two Richards, Bens, and double plane folks is that they aren’t in the island [anymore/yet] in the alternate timeline. Again, I don’t have lots of evidence.