It was proven that Loki could've survived Voids destruction via escaping the physical plane. Butnhe chose to die via Hela's deal allowing him to be immune to the Norse death process. And was able to return as a child with a clean slate.
Yet whilst with the stones he ordained Earth's heroes with the power to hurt Void.
Which was a huge feat. The helicarrier feat simply shocked Void into Sentry state who wished death.
The Norn stones allowed basic fighters to hurt a villain capable of reality alteration on high levels. But was just getting started.
Loki unleashed with such power would be through the roof.