Japan could still recall the midget-submarine attack

Could Japan still stop the midget-submarine attack if Kido Butai withdrew?

In theory, yes; there was still time to recall or halt that part of the operation.

The Pearl Harbor plan included submarine actions that could complicate a carrier recall. The midget-submarine attack could still be stopped in theory at this stage. Coordinating a cancellation across dispersed, radio-conscious forces would still take effort. A strategic decision to withdraw therefore requires subordinate operations to receive and obey the change.