The super disguise could be considered the ability that Luke was least familiar with.
It was especially troublesome to adjust the various genetic traits of the human body.
In order to confirm that the Joker was Jack Bode, however, blood, hair and skin had to be left on camera.
SHIELD had long found where Jack Bode had stayed before, and it contained enough samples for comparison.
Superpowers that could transform someone at the genetic level were very rare in the world. The combat ability which the Joker displayed was similar to a physical buff.
Dual ability users were also rare, and the possibility that one of the abilities was to change genetic structure was practically zero.
This way, basically nobody would doubt the Joker's identity.
As for the two teams of special guests from SHIELD, the first team was made up of Hydra and extremely evil people, and one part of the second team was neutral.