First of all, it seems, they at least read along in this forum and react accordingly, if they did not get that idea on their own (which I hope).
They could have been a bit faster posting an apology; I wouldn’t have needed a video.
Regarding the discount code.
That is just an add on and a sign of good-will, that would not have been neccassary to me. Others (rightfully so) might feel different about this.
So, if I can use it, great, if not, no problem either. (Most likely I will have forgotten about it in a few months time anyway. 
)
Possibly they will offer other/more accessories later, that are tempting to buy?
Especially the headphones should be available at a later time. And if someone needs them, the discount makes it 50% off the price (including shipping).
Edit
To all, who did not see the headphones so far. They are available for preorder from resellers in Switzerland (34.90 CHF to 44.90 CHF) and one in the Netherlands (39.90 €). One page states, they will be available by week 47 (i.e. not before mid-November).