The ice storm never stopped. It had been tamed in some places but only with immense effort by Immortals to carve out a place for them to live. Some cultivators had immense benefits from the environment but they needed the support of resources and supplies to get the maximum result.
Thus the Icy Path had been slowly carved out but the natural residents of the beasts did not give up their lands willingly.
Lind Frey had made those slow attempts laughable when he established a Haven for his Clan to thrive in only a few decades compared to the slow centuries it took others to lay even a basic formation to push back the storm.
The Frey Clan had thrived and in time, needed a standard piece of equipment all supreme powers had for their members or allies.
An ascension platform was a kind of status symbol as they were resource intensive to not only build but maintain over time and use. Lind, being a Triple Maester, had studied other such platforms as the Icy Path had none of them before.