I think this is already in the radar and quite possibly in the works as they have mentioned creating a series of narratives towards the finals much like xfactor and voice etc. I think it makes sense to do that towards the end as there are less performers.
I would struggle to watch into videos of 1000 performers myself personally but if they are on their profile page then quite possibly one would only get there once they have liked the audition video ans then followed the performer to their page.
All in all, I think you will see productions really taking centre stage over the next few weeks. They have 4-5 execs in the team hired just to do that.
You saw that Jeb video and Usher video, a raw talent performer video of that quality will trend all over social media. This is one of the key viral factor they are counting on.