Kober had 2 hours to get upset, but not 3 days to write anything. He was present on the forum during that period and posted in other topics.
I would also like to note that Kober also did not meet the deadline for the first part of the 1/32 round and also did not write anything, so a mutual technical loss could have been declared back then.
Kober knows about the importance of writing within the deadline, which leads me to conclude that he deliberately ignored the regulations.