Is he showing HIS videos? (hint, that’s a rhetorical question) The venue Apple recorded the content in, public or private, is not relevant - he did not create the content. And the use of someone else’s content or work without permission or license is an infringement on the owner’s rights - struggling or not - no “nuance” about it. If you think it is OK to steal from a department store, but not the struggling artist, you're still a thief. Your idea of “nuance” is simply personal justification that it is alright to take from some, and not from others.
Come on, you are talking about theft in black and white terms here, if you go by the letter of the law, everyone is breaking the law at multiple times in their lives, at one point, heck it still might be technically, it was considered against the law to record movies off HBO for home use, was that ever theft?
You can call me a thief for uploading a 1985 Mac Apple commercial or a 1984 Steve Jobs Mac keynote event, or the other day I was watching a 2002 Paul McCartney concert on Youtube, it was uploaded by a random Youtube user, call it theft but in reality the guy who did it is no thief, McCartney is worth hundreds of millions and he simply won't care about nickels made on this concert relic, hey, maybe even the struggling artist won't care if his or her name is getting out there from the so called thief.
But if McCartney's team reaches out to the Youtube user and takes down the video, so be it, don't do it again, but nobody should feel like a thief or bad about it.
If you don't think there is a moral difference between stealing a candy bar or hundreds of millions like Madoff, well, I can't help you.
I used to record music off the radio, was that theft, in your eyes, probably, but again, I guarantee you have committed crimes in your life, you have driven over the speed limit, but there is a good chance you are a fine upstanding citizen, Bernie Madoff is a pure evil scumbag, the candy bar thief should not do that, but an arch criminal he is not.
And the WWDC uploader is not some moral reprobate. In certain cases the economic impact of uploading said videos could benefit Apple more than the pennies made by the Youtuber, people here I'm sure understand that you make garbage money off Youtube unless you are in the stratosphere of views, hey, maybe even Googe are thieves, has CBS/NBC/FOX given them permission to allow people to upload tons of vintage content from those stations.
Google claims they takedown pirated videos, but do a Youtube search and you will find endless links to pirated sites of top shows/movies, is Google really doing such a great job or looking the other way to profit off the pirates in an off handed way.
How much code did Jobs steal from Gates to create their early OS, damn thieves.