But what you are gaining in time FAR outweighs any game distortion.
I disagree, and that Team Covenant article is an excellent read for explaining why. Basically, with the revised 'modified win' rules (12 pt variance enough for a 'full win'), the reduction to 60 minute rounds swings the game balance heavily in favor of 'fat ships' and against more 'swarmy' lists.
That is a pretty fundamental break in what makes X-Wing "X-Wing", IMHO. Whether players can still have fun with 60 minute rounds or not, I dunno, but when you see the constant stream of 'Fat Han lists are unbeatable', the complaints when you chase them down are almost always from 60-minute-round players.
The game just does not work well in that format.
As to the general disagreement on the value of elimination rounds - I guess that's just something we'll have to disagree on. IMHO, another round of Swiss provides enough of a slight margin-of-possibility for a 'top 8' player to claim the crown to make it worth them continuing to play for even the grand prize (without the oversized possibility a 'cut to top 8' provides), and for everyone outside the top 8, the participation prizes and other prizes are enough to keep them going another round to my thinking. (And if not - well, they were going to leave anyway as a result of being cut, outright, weren't they? So, comparatively, there is no loss.)