Additional data point from BOM today.

Group 1 called first, then 2, then 0 (almost like an afterthought) and then the rest. To be fair, it did seem as if they had forgotten about the sequence, as there was a bit of a discussion after 2 had been called as to what happened. There were quite a few 0's on the flight given various conferences happening in the city.

Everyone took it in good spirits though, a few laughs here and there about the misstep. No doubt they'll get it right.