Chelsea fight back over 'child trafficking' allegations
Kenyon said: "It was something that happened two years ago that was in no way child trafficking.
"I think you've also got to distinguish between the issues."
The Chelsea chief executive added that Kakuta, now 18 and viewed as France's most promising young player, had also been stunned by FIFA's verdict.
He added: "He wants to play his profession, which is football.
"We need to take account for that and understand this is something that happened two years ago, and make sure we've got enough support around him to ensure he's fully supported at a difficult time."
Kenyon, speaking after a meeting of the European Club Association (ECA) in Geneva, insisted Chelsea would support a ban on the international transfers of players aged under 18.
He said: "This has been talked about for the last 12 months and we have signed up fully to the ECA and UEFA's position, along with FIFA's.
"We need to separate our overall position with the specific case. The fact we are appealing tells you our position."