Ryu nearly collapsed. The drain on his mind had reached the point of excessiveness and he hadn't even been able to speak or taunt as he would have otherwise.
Usually, with how much anger he had bottled in, let alone leaving Old Wan to guess what had happened, he would have found one way or another to force him to confirm it.
However, he simply didn't have such a luxury this time, and maybe that was for the best. His arrogance often got the best of his logic, and truthfully speaking, the less Old Wan knew for certain, the more time he would have to spend on potential contingency plans in the future for the largest number of enemies possible, and the less singular pursuit and focus he would have on Ryu.
That would only help him.
In addition, since more than just Hope's soul had escaped, there wasn't any of that sort of certainty to help him either.
