It's my understanding that Legendary Runes and Sigils should count for compensation, so I'm not sure what happened here, but we'll take a look!
For some background - compensation was distributed based on some data that was shared with my team the day of the Armory's release. This spreadsheet was meant to have every user and their excess items listed, and we sent out the designated compensation according to that. However, if you didn't receive compensation for these runes then something definitely seems to have gone amiss in that count.
I think I also found your ticket and there may have been a slight bit of confusion on our part (and I'll take part of the blame myself for this one) - you have the perfect number of excess runes that the message escalated to me that stated "this person had 11 runes and got 5 boxes of compensation" seemed correct, at least at first glance, when accounting for your 6 normal armor slots. But, as it turns out, that's 11 EXCESS and not 11 total - in that case, five boxes definitely doesn't seem right at all.
I apologize for the mix up that seems to have happened here! I've got some of our best agents on the case to look into what might have gone wrong. If it turns out the data we got was wrong, we may need a tiny bit of extra time to circle back with the folks who sent it to us to verify what happened and run another round of database queries to correct whatever caused you (and possibly anyone else) to fall through the cracks regarding runes or sigils.
Again, I'm really sorry this happened, but I just wanted to clear up that this does not seem to be the intended outcome of this case, just a perfect storm of incorrect data and perfect numbers leading to the wrong amount of compensation. We'll do our best to get it sorted and made right as soon as we are able to! o7