TASs allow people to demonstrate things possible in a game that are almost impossible to do in real time. As such they are not really representative of what the game is usually like for the average person so you can't even use the same argument of being able to experience the game without playing it yourself like you can with a Let's Play.
I'd also like to point out that Nintendo's legal page about not supporting emulators is really badly written. It's like they got someone who was trying to use lawyer speak to convince people that all emulators are bad and illegal but this person wasn't a lawyer at all.
"How come Nintendo doesn't support emulators?"
Seriously? That entire article is full of bad grammar and seems extremely unprofessional.
Tool Assisted run
Programs modders will run to do things like inspect memory while actions are taken in the game, provide the game with inputs beyond a persons ability to do so manually, etc.
It adds a layer of automation that helps people really dig into the root of a game's function, and then help them break it further.
i don't think Nintendo is that stupid. if they ever messed with the GDQs, the bad press they would get would be pretty big. it would be they basically blocking charity and that's a big no-no. GDQs will proceed the same as usual.
not to mention everything in the GDQs is done on real hardware. emulators are never used there (except for official ones like Virtual console) and rom hacks are never there at all.
i still want to see Nintendo shoot themselves in the foot just to see the shitstorm.