He doesn't want to strip you for not updating the list. (You sexy beast
jkjk) It's for the length of time you're taking to start the fight with the challenger. At this point you should both be slapped on the wrists. *slap*
I honestly don't think you should get stripped. Others have done far worse with no punishment, but at the same time it shouldn't happen at all. To add on to that if leniency is placed on all minor rules broken then it may continue to increase lenient and mess up the whole system.
Yes Kiri has done far worse. Reason we ignore them now, but that doesn't mean you should take their examples of 'F**k everyone else' and pit them against your own. Their wrongs may be worse than yours, but they're both still wrongs. That doesn't mean you turn into Kiri. You don't get vindictive or spiteful. You work it out.
Rusaku wanted to have a good time at a con while the other guy is figuring out his character. That's not Bocc's issue. It's T'Challa and yours. It's not so much of a fallacy that you should be stripped though. The most reasonable thing I can think of is to move Bocc to T'Challa's challenger spot and then once the newbie character is worked out let him fight Bocc if he's still up to it.
TL;DR
T'Challa gets booted from challenging you. You fight Bocc. After that once T'Challa has everything worked out he can fight against Bocc/Rusaku.