It's talking a bit longer than usual message - MDT 8450

I have been experiencing the behavior described in the following article for quite a long time:

https://blogs.technet.microsoft.com/mniehaus/2015/08/23/windows-10-mdt-2013-update-1-and-hideshell/

My machines will image relatively quickly, and MDT monitoring will show the task sequence as "completed".  However, the machines will sit at the "It's talking a bit longer than usual....." message for a long time, then the task sequence finished message will appear.

I'm looking to resolve this, and stop the machines from sitting at that message.  I found the above article, but I'm hesitant to implement the registry tweaks provided because I'm unsure of what they'll effect.  Particularly the DelayedDesktopSwitchTimout set to 0.

Has anyone else experienced this/fixed this?

(I am running MDT 8450 with updated ADK.)

Thank you!