Ascension is a constant ongoing process many achieved with no solar flash, it will happen regardless. The solar flash seems designed to do it en masse. Considering our recent year discovery that many so called natural land features are really melted cities and petrified lifeforms, cataclysms have happened repeatedly here.

That being said, we are Divine, and do have a part in how things happen. If we were to reach a point where no solar flash is required, it might be altered, but achieving that anytime soon en masse doesn’t look very realistic at this point.