On DEN to IAH yesterday the Captain made the "turning off the seatbelt sign" announcement and a couple minutes later the FA made her announcement including the "when the Captain turns off the seat-belt sign" part as if she hadn't heard his announcement. Seemed kind of funny at the time and once is an error, not a trend.
But on the same flight there were new edicts that I've not seen before - telling PAX to "turn off your Bose noise-cancelling headphones" - on both takeoff and landing, and well before final approach in the case of landing.
Reminded me of the militant AA approach to cell phones in contrast to the kinder, gentler CO style.
I'd agree that it seems there's some new pressure on the cabin crew and they're going above and beyond the call of duty. But it'll prove annoying if this is the "New Uptight CO FA" of the future.