Unfortunately this does not work either

admin@NAS:/var/services/homes/Admin/Drive/Moments/2007/2007-08-06$ exiftool 20070806_12h08m29s.avi | grep Date
File Modification Date/Time : 2020:01:26 20:02:58+01:00
File Access Date/Time : 2020:02:15 16:52:09+01:00
File Inode Change Date/Time : 2020:02:15 16:52:09+01:00
Date/Time Original : 2007:08:06 12:08:29
admin@NAS:/var/services/homes/Admin/Drive/Moments/2007/2007-08-06$ exiftool -a -G0:1 -s -time:all 2007
0806_12h08m29s.avi
[File:System] FileModifyDate : 2020:01:26 20:02:58+01:00
[File:System] FileAccessDate : 2020:02:15 16:52:09+01:00
[File:System] FileInodeChangeDate : 2020:02:15 16:52:09+01:00
[RIFF] DateTimeOriginal : 2007:08:06 12:08:29
admin@NAS:/var/services/homes/Admin/Drive/Moments/2007/2007-08-06$ exiftool "-filemodifydate<datetimeoriginal" -progress -ext avi 20070806_12h08m29s.avi
======== 20070806_12h08m29s.avi [1/1]
1 image files updated
admin@NAS:/var/services/homes/Admin/Drive/Moments/2007/2007-08-06$ exiftool 20070806_12h08m29s.avi | grep Date
File Modification Date/Time : 2020:01:26 20:02:58+01:00
File Access Date/Time : 2020:02:15 16:54:23+01:00
File Inode Change Date/Time : 2020:02:15 16:54:23+01:00
Date/Time Original : 2007:08:06 12:08:29
admin@NAS:/var/services/homes/Admin/Drive/Moments/2007/2007-08-06$