Good to know. For my own curiosity: Does playmaker make log callbacks even on standalone builds? How about when Enable Logging is disabled in the Debugging Preferences?
I have not changed PM preferences or tried this script with different settings, but I have 'Enable Logging' enabled, and 'Forward Playmaker Log to Unity log' disabled. In the week of use I've had with it, it's worked as expected in both the editor and standalone builds. If there's any interference I definitely haven't noticed it.