I am not equipped to try this however as you said like others I have wiped my SSD clean and proceeded with install.
On one occasion after skipping the part of install where you get to choose where to get your data to import ( my case TM) chose to import later I actually had Mojave installed. Having to go through process of setting up accounts etc.
Thought I was on my way. Proceeded to use Migration Assistant and all went for a crap.No activity from my NAS where the TM is. Tried booting to safe mode and reinstall Mojave and install locked up.
This was on my first attempt. The other 3 attempts where a straight upgrade including a clean install and choosing to use TM for data transfer during the install process.
All 4 times a clean install of High Sierra and TM data transfer during install worked the way its supposed to.
I am willing to accept that I am the one that has an issue but where to go from here. My MBP works like a champ under High Sierra so what is so different with Mojave that my machine goes for a crap. That is why I and others believe the issue lies with Mojave.
Heck I've been wrong before, but .....