I recently taught a sports photography workshop here in California. I had multiple, beginner level students, show up with A1's. If money isn't an issue and you are confident in your decision to pursue photography, even as a hobbyist, the A1 is a great investment. I teach all my sports photography workshops with Sony A1's and Sony GM lenses.
As for the auto setting on a flagship camera, why not? In my opinion, a flagship camera should have every available option. I rarely switch my A1's off of manual, but if I wanted to go auto, at $6500 I would expect that option to be there. Not everything has to be done the hard way or manual way. I prefer it, but that is my preference, and by no means do I expect my preference to apply to other photographers.
We all love options!