Margin adjustment is a very good way to add some extra margin and save your position from being liquidated, we know of potential risks but the risks are much less compared to a high leverage trade even with a stop loss as when wicks take place, they eat out almost all the stops before they start to stabilize and that's when this marginal adjustment can prove to be the best decision taken by a trader.
Why would you use very high leverage in the first place, knowing how risky or volatile crypto price movements can be?
The risk is even higher when you have no stop loss in place. Even a position of 2x can still easily get liquidated if there's a price trend in a specified direction.