Yea D70 is just for pictures. I have Sony a6400 as main camera and to be honest I can turn it on and record a video faster than I can with my iPhone, mainly because the dedicated buttons. I also don't think it's that much of a hassle. It has Wifi to get data off. It's pretty easy actually. It's worth spending and extra 2 minutes to do it so in 30 years I have nice video and pictures of family.
Most new cameras have WiFi capability syncing to your phone. It's an extra step but it's not as bad as it used to be. Finally snapseed and lightroom for Android are good enough for basic editing in the field. At least that's what I do and I'm quite satisfied. With the resolution Facebook and Instagram presents photos the phone apps are more than sufficient at raw processing.
I can only talk to Panasonic (GX8) and Fujifilm (X100F, XE3), but for both of those it's still pretty awful. Transfers are very slow, especially if you want full resolution, and it's always frustrating to just connect my phone to the camera--the apps are slow and clunky, setting up the adhoc network is flaky, and often times even after connecting it'll suddenly just disconnect for no reason. The XE3 supposedly supports a persistent, bluetooth connection that'll auto connect and auto transfer photos, but every time I've tried to set that up, it sends like the first two photos along and then doesn't work anymore.