I think it was a success no matter how mainstream news outlets or Reddit want to spin it.
The mods of subreddits very cleverly pointed out that the direction Reddit is heading in stinks and even all the masses who don't care about it still got the message though being inconvenienced by not having access to their favorite echo chamber for a few days. Just look at all the comments on "should we open up" posts from pissed off mouth breathers basically demanding they return things to normal.
At the end of the day, of cause Reddit was going to force mods to open up their subs or remove them. The mods never really had any power in the situation anyway and the precedent of Reddit just taking over subs was already well established. If Lemmy or Kbin was another 5+ years in development with a couple of much larger communities already well established then the exodus might have approached Digg levels again, but the lack of easy mainstream alternatives means that Reddit was always going to get its way eventually.