Vulcan skies are like Klingon looks: the change is not a bug but a feature. Loving the attention to detail, no matter how weird, in DSC.
Also, Michael's flight through the bushes on her way to the desert probably involves the very shrubbery seen in the TAS image...
How this relates to the supernova thing is unclear. Nothing about Spock's meld visuals need be taken as counterfactual, even if some of it is shot through weird lenses. Whether the narrative is linear or not is debatable; we now know that "a star will explode" actually belongs a bit later in that narrative even if Spock uses it as an introductory phrase, but the rest has not been nailed down yet.
Timo Saloniemi