He could not escape by himself let alone bring Reitz with him, he had kept practicing day in day out since he acquired the boots but some of the motions were too complex, he even tried to use it in tandem with AMP to balance his flight, but it required tremendous amounts of magic plus he had to stare at his feet to actively correct his trajectory. If he were to use this tactic now it would not be viable as Reitz's weight would not let him stabilize, plus there were already a few chimeraans in the air eyeing them from escaping through the treetops.
