There are cases where it makes sense, but I'm not sure that mobile devices that are likely to be playing video is it. Chances are, they'll be burning more power on the screen backlight than the CPU to do AES vs something else (assuming they're not accelerated for AES). There's two sides to the argument, but easing the burden on servers lets one server serve more clients; it's easier to justify 2x the cost for crypto on the client than on the server, because most clients aren't bottlenecked on crypto and some servers are. (Of course, I'm usually a server engineer, so of course I want my servers to have less work ;)
Choosing ciphers for ease of the client makes more sense, IMHO, when the client is really constrained, like a feature phone or tiny IoT things.
Choosing ciphers for ease of the client makes more sense, IMHO, when the client is really constrained, like a feature phone or tiny IoT things.