Overall I like the changes. My only bummer is that Time-attack style events are penalized. In fact I was conceiving an event with three sets of the same games (2 each) and running a tournament with a slalom-style. Players play a timed match, swap games and the highest combined score wins that match.
I disagree on skill being diminished, particularly if enough rounds are played. It requires formulating a strategy that can be quickly executed and then doing it under a lot of pressure. The format often favors flow players and punishes control players, but the good players could always change up as needed.
At the last one I ran there were around 30 players in a double-elim. It was Patrik Bodin, Hal Erickson and Andrei Massenkoff in the top 3. There is some variation in the results but no more or less than I see in other smaller, one-day events. And with additional rounds, swiss pairings, round robin, etc. the luck factor would not be an issue.
A huge advantage of time-attack events is the game needs minimal modification from stock and tournaments can be run within very predictable time periods (the aforementioned tournament only took about 3.5 hours!). Players never have a massive wait. It's also exciting to watch (a consideration for streaming and TV).