Yeah, I went on Monday, and had a similar experience. I had gone before, and Emperor was running two train ops, and the wait wasn't too bad. But with one, it's pretty slow.
And same with Manta. It's crazy that one position has to manage lines, guests exiting the ride, and checking restraints. Ridiculous.
Electric Eel was a bit better, but when I rode it, even Atlantis was only loading one boat at a time.
Not to mention that most of the Fresstyle Coke machines have been removed and replaced with fountains. And I tried to watch the Joyous Celebration show, but left half-way through because of how bad it is. Not that the performers were bad...they were doing the best they could (even though there were only 8 of them total, which felt understaffed), but this "family friendly" show was pretty clearly geared towards the 10 and under age group only. Not much for teens and adults here. You know it's bad when they invite people on stage to hula hoop for 2 minutes, and this is supposed to be their feature show.
On the plus sides, for what it's worth, Tidal Twister is now more reliable, and the holiday vibe was nice with holiday music piped in throughout the park. Also enjoyed the holiday store at the Explorer's Cafe area.