I will point out that Frozen's Meet & Greet was 45 min on Sunday at 3pm, with Rapunzel and Aurora being 75. I don't know if that was an anomaly, or the CM's over in the Frozen side are more efficient, or maybe a sign of the hype dying down a bit.
Frozen isn't going anywhere. It was a beloved movie. Even most of the Frozen-everything's detractors like the movie. Just a shame that when the hype dies down, and they stop doing Frozen X-Mas lighting, Summer Fun, etc... They'll have a really pretty attraction shoved into Norway to "get this thing done".