I don't plan to do an outdoor grow again, and I live further south than Alaska. Too cold and too wet, too much mold, too many slugs and bugs. My current indoor grow just wrapping up OTOH - no mold, no pests, climate exactly what I choose. And with LED's, maybe $40-$50 in power costs for a seriously nice load of weed. And I could just stomp down to the basement to immerse myself in garden delight. What's not to like? Yes, I know that outdoor can work at this latitude, but I doubt that I will invest the effort again in the absence of a greenhouse. Too much of a crap shoot given the time and effort necessary. I guess I am not much of a farmer.
Anyway, back to the germination issue. No one is trying to tell you that germination will not happen at lower temperatures. It will just not, in the experience of expert growers here, be as consistent. Further, with autos, a slower start may be a setback that matters given that the clock may be running from day 1.
It may well be that observed lower germination rates at lower temperatures have been accidentally selected for by breeders. No doubt a heck of a lot has been going on genetically as a result of years of selection for the traits now separating strains. If breeders have been using higher germination temperatures simply due to speed and convenience, that could result in selection for performance in a warmer than natural environment.
In any case, germinate as you wish, but please don't discount the experience of expert growers here. No one here is trying to force anyone to do anything, they are just attempting to share accumulated experience that can help others.