That may have been a brief trend on domestic flights with older airframes, but that isn't the general aviation trend. The last thing you want is more lithium batteries charging and discharging on a long flight over the ocean.
This doesn’t make much sense. If there’s an explosive risk, then it’s going to be a huge risk over land as well, and it doesn’t make sense that they’d be increasingly putting outlets at every seat.
The WiFi on planes is satellite and something like 256 Kbps with extreme latency. It works fine for light web browsing and email, but it's unusable for video streaming. Your options are to pre-load entertainment or watch what the plane has pre-loaded in the seat-back entertainment screens.
