The...

This was just the tip of the iceberg as well. 

In truth, although only Transcended Sky Gods could enter the void, Sky Gods as low as being in the Fragmented Realm could influence it. This was why Ryu had never thought of using the Unbalance Mantra to escape, the likelihood of success was too low. 

It didn't matter if only he could enter the void if those Sky Gods could sense him and force his pocket of space to collapse. And, even if they didn't have the strength to collapse his pocket of space, so long as they could sense him, they could track him until his stamina ran out and he was forced to step out or die within the void as the pocket of space collapsed. 

However, now, Ryu didn't have to worry about this, so long as he reacted fast enough, escape was no longer a fool's dream. On top of that, there were contingencies.