Thank you. This is a very interesting post! While I have random freeze, whose frequency is reduced now miraculously (perhaps after the latest update to 10.14.3), I still have one very consistent type of hard freeze: When my MacBook wakes up from Sleep and I dare to login, using the Touch ID instead of the Password, the computer locks up completely. No Mouse movement, no keystroke is recognized, not even the Caps Lock key changes the light, when toggled. I have to do a cold start.
My other random freezes have been when using the touchpad. I can't say whether these were all of them.
By the way, my MacBook pro is a 2016 model, and the freezes only started after upgrading the OS to Mojave. I haven't tried to go back because this would be such a pain.
I started troubleshooting with Apple (I had already a supervisor for another issue), but just then the lockup wouldn't occur.
It only started again the next day. Haven't had a chance to go further. I am avoiding Touch ID for now.