I understand both of your points because I have served in both old and new schools. But the key to us old schoolers was the use of parafocal lenses. It gave you certain amount of relief. Now with the big sensors and especially with 4k, I have been burnt with focus being off just a little. Sure AF can burn you in a quick run/gun situation with a lot of people in your frame, but it is tool for some situations. But I do love the art of pulling my focus. It feels organic, like the camera is part of my hand. There are some things I will not yield to (yet!), like having a bunch of crap hanging off my camera. Again, I think back to my old sony with the u-metic deck, I feel grateful for not only the marvel of technology, but for learning the basics of the "old school" ways.
Ditch the stills zooms.. get a par focal one..