That's not really relevant. Just because they don't (won't) have the full vertical integration doesn't mean it won't have an effect. The chips are where there's a shortage. Most brands of assembled sticks of RAM don't make the chips. They buy the chips primarily from Micron, Samsung, and SK Hynix. If these chips become more plentiful, then brands like Kingston and GSkill can produce and sell the final product to consumers.

The real reason it won't help consumers, at least for a while, is that the plant won't be online until late 2027. And that's assuming demand doesn't increase in that time.