It's funny how they delayed the 7 series update, because of the 7T decription issue, so that they wouldn't have to release it before 7T.
I don't find it surprising, though, that they have not fixed the original issue, since most likely this would have had required a full data wipe, which in a real world isn't really something to do.
They should have had, hower, offered a way to get this working, like I remember they did something similar for 3/3T where after an update they changed data from ext4 to f2fs, but only if you wiped. So whoever wanted the change, could get it by wiping.
I don't find it surprising, though, that they have not fixed the original issue, since most likely this would have had required a full data wipe, which in a real world isn't really something to do.
They should have had, hower, offered a way to get this working, like I remember they did something similar for 3/3T where after an update they changed data from ext4 to f2fs, but only if you wiped. So whoever wanted the change, could get it by wiping.