Well, since we’re suspending disbelief and playing what if, take a look at the Genesis account and ponder the apparent differences in the geology, weather and atmosphere described. It appears that the planet was surrounded by a canopy of water. Could this provide UV protection and moderate surface temperatures sufficiently to provide a habitable environment?
A canopy of clouds doesn’t work out well for Venus. I think it is more likely that God said he would shorten our life spans and we subsequently started living shorter lives.