I doubt it. I use Keyboard Maestro extensively to automate certain functions within Quicken to make things easier. For example, I use KM to open certain account registers via a keyboard shortcut. Hint: use KM's screen image location ability to anchor the cursor position selection. If you are comfortable programming in AppleScript, then you should be able to pretty easily learn KM, a very powerful tool.
For these reasons, it makes little sense for the Quicken Mac development team to invest considerable time in building significant AppleScript support into Quicken after all these years.