With respect, you didn't read the first entry in the bug. There is a syslog attached, and my syslog is not adding new information.
The mt7912e driver panics on rmmod and the firmware is never loaded. The first part of the bug describes this. I attempted this workaround in order to get the firmware available to the module before it performed hardware detection, because otherwise the installer hangs.
Perhaps that information is useful to you to understand the problem? Perhaps it is useful to other users who encounter this bug.
I'm not trying to tell you what the fix is, I'm trying to give you additional information to assist in understanding the bug that (so far) two users with a Mediatek MT9721e have encountered. I am not a d-i expert, I only know what I know, and this is the best I could do to work around the driver crash and thus installer hang.
I would appreciate you not replying with snide remarks in response to every paragraph in the bug report. You don't need to repeat yourself either; I saw your previous update. This is not a competition, I am only trying to offer you assistance.