This would be a cool idea IF THERE WAS ANY TESTING DONE FOR THE LIMITED FORMATS WHATSOEVER AND THEY WEREN'T SO TERRIBLE. Seriously, though, if it's stimhack cube, I am 100% on board. If it's FFG draft packs, absolutely not.
I don't think tiebreakers are a huge problem. However you do them, someone gets screwed and has barely any control over it. That's the nature of swiss. To me, there are two big problems with FFG tournaments right now, (not including prizes, which I will leave out of the equation):
(1) lack of cohesive rules for enforcement. The rules for the game are great, they're clear, and almost everyone knows them. Rarely does a judge get called for a game rules ruling. The issue is that when something goes wrong, (someone's deck isn't as registered, someone accesses, sees, or draws a card that they shouldn't, someone takes an extra click or extra money and gameplay continues, etc etc), there is no written rule for what to do. Often, there is no penalty whatsoever for the person who made an error and that person gains a measurable advantage. THAT IS NEVER OKAY FFG. Someone played a PE deck in worlds but showed RP as an ID, and lukas ruled that he had to play that game as RP. Well, thats not the ID he registered, it changed the game a lot, and that needs to be an automatic game loss. It feels like they don't want to penalize anyone for anything because it leaves a bad taste in their mouth, but it needs to be done sometimes to keep the game fair. Not only does it need to be done, but there need to be explicit rules about what should be done about what so whenever you go to a new place to play it isn't the wild wild west of rules enforcement.
(2) time. There is not enough of it. Ever. Not enough time for enough rounds, not enough time for elimination, not enough time for any individual game in elimination. 65 in swiss is usually okay because its averaged over two games, but 35 for elimination is NOT EVEN CLOSE TO ENOUGH. Not only are you exposed to the variance of the length of one game being much more than that of two, but the game is high stakes and thus incentivizes players to think more, and potentially stall out the game for a timed win. These rounds should be 45 minutes. What was more important to FFG, that they could get out of the building an hour or two sooner or making sure that the world championship games werent decided by the largely arbitrary point score when the round ends. With regard to the swiss rounds, I think for larger tournaments such as regionals and worlds where people travel for them, they should really play as long a tournament as they could possibly fit in the allotted time to reduce variance and give everyone a chance to do what they came to do. 11 am is too late to start and 8pm is too early to end, imo. We could have had 2 more rounds, and we should have had 1. Just forget about the fact that a 238 person tournament should cut to at least 32 by their own rules.
Another minor thing I would like to see is more player commentary, (get people who were just knocked out to do commentary, they are much more competent and entertaining than your employees, and there are plenty of accomplished broadcasters in the crowd). For smaller tournaments, they could use their channel to host other peoples streams of tournaments and promote the broadcasting of netrunner in general which does a lot to grow the game.
Largely, I thought it was a very well-run event. They're doing what they do without many people working on it, which is hard, and asking them to hire more people is maybe unreasonable, (but getting volunteers might be a good idea). Everyone I know had a great time and I, personally, enjoyed it a lot more than I thought I would, even if you set aside the whole becoming world champion thing.