Looks like the 2.0 update fixed the 3v4 issue in Splatfest. Haven't had a single one of those today. Had one 3-person team appear, and then it waited awhile, and then whisked away the team.
Did end up playing the exact same guy two rounds in a row (he joined a different team after we demolished 'em, lol). And then later, we played the exact same Hot Dog team twice in a row. A runback to Moray Towers (which we also won). Either no one is playing on Saturday afternoon, or I witnessed a rare event.
Getting about 1/5 matches against other Marshmallow teams. Guessing it's going to be a 65/35 split or worse.