The exact moment that the spiritual links detached from the three, they combined together to form a single light, which then transformed into a projection of Lex. The projection had no power whatsoever, not even an aura. After all, it was not even a cloning technique, but rather a technique to keep track of his targets.
That did not change the fact that Lex could remotely use the projection to understand what was happening.
All Lex saw was the three of them get pulled into the V.A.N. and the opening close behind them. A spiritual sense emerged from the white hill and covered Lex, as if observing him, just as he observed the hill.
Countless thoughts ran through his head, and Lex even confirmed that he was unable to summon Fenrir back to his location, before he turned his attention to the spiritual sense observing him.
